diff --git a/nightly/configuration/command-line-options/index.html b/nightly/configuration/command-line-options/index.html
index ddd33767..1f885614 100644
--- a/nightly/configuration/command-line-options/index.html
+++ b/nightly/configuration/command-line-options/index.html
@@ -2351,7 +2351,7 @@ see information on these options by running btm -h, or run bt
--theme <SCHEME>
-
Use a built-in color theme, use '--help' for info on the colors.
+
Use a built-in colour theme, use '--help' for info on the colours.
@@ -2394,7 +2394,7 @@ see information on these options by running btm -h, or run bt
- April 17, 2026
+ May 8, 2026
diff --git a/nightly/configuration/config-file/styling/index.html b/nightly/configuration/config-file/styling/index.html
index 35380321..8d9bab12 100644
--- a/nightly/configuration/config-file/styling/index.html
+++ b/nightly/configuration/config-file/styling/index.html
@@ -2142,6 +2142,26 @@ highest precedence to lowest precedence:
Note that anywhere "colour" is used, it can be substituted for "color":
+
# This is okay
+[styles.widgets.widget_title]
+colour="black"
+bg_colour="white"
+
+[styles.cpu]
+all_entry_colour="green"
+
+# This is also okay
+[styles.widgets.widget_title]
+color="black"
+bg_color="white"
+
+[styles.cpu]
+all_entry_color="green"
+
+
You can configure the colours for components with strings that are either hex colours (e.g. "#ffffff"), RGB colours
(e.g. "255, 255, 255"), or named colours. Named colours are one of the following strings:
@@ -2166,18 +2186,18 @@ highest precedence to lowest precedence:
Text can generally be styled using the following TOML table:
[field]# The foreground colour of text.
-color="black"
+colour="black"# The background colour of text.
-bg_color="blue"
+bg_colour="blue"# Whether to make the text bold.bold=false# Inline table version
-field={color="black",bg_color="blue",bold=false}
+field={colour="black",bg_colour="blue",bold=false}
-
All fields are optional; by default if bg_color is not set then there will be no background color.
+
All fields are optional; by default if bg_colour is not set then there will be no background colour.
If you just want to style text by setting the foreground colour, for brevity, then you can also just set the field
to be the colour itself. For example:
[styles.widgets]
@@ -2196,19 +2216,19 @@ to be the colour itself. For example:
-
all_entry_color
+
all_entry_colour
The colour of the "All" CPU label
-
all_entry_color = "Red"
+
all_entry_colour = "Red"
-
avg_entry_color
+
avg_entry_colour
The colour of the average CPU label and graph line
-
avg_entry_color = "255, 0, 255"
+
avg_entry_colour = "255, 0, 255"
-
cpu_core_colors
+
cpu_core_colours
Colour of each CPU threads' label and graph line. Read in order.
-
cpu_core_colors = ["Red", "Blue", "Green"]
+
cpu_core_colours = ["Red", "Blue", "Green"]
@@ -2224,9 +2244,9 @@ to be the colour itself. For example:
-
temp_graph_color_styles
+
temp_graph_colour_styles
Colour of each temperature sensor's graph line. Read in order.
@@ -2443,7 +2463,7 @@ to be the colour itself. For example:
- May 3, 2026
+ May 8, 2026
diff --git a/nightly/search/search_index.json b/nightly/search/search_index.json
index 12d5f864..d0530b19 100644
--- a/nightly/search/search_index.json
+++ b/nightly/search/search_index.json
@@ -1 +1 @@
-{"config":{"lang":["en"],"separator":"[\\s\\-]+","pipeline":["stopWordFilter"],"fields":{"title":{"boost":1000.0},"text":{"boost":1.0},"tags":{"boost":1000000.0}}},"docs":[{"location":"","title":"bottom","text":"
A customizable cross-platform graphical process/system monitor for the terminal, supporting Linux, macOS, and Windows. Inspired by other tools like gtop, gotop, and htop.
This site serves as extended documentation for bottom alongside the README.md.
Warning
Some areas of this site are still in progress and may be missing details. Feel free to suggest/contribute changes!
It's as good idea to first check out the Support page to see if your system is officially supported!
Tip
If you're facing some issues during/after installation, check out the Troubleshooting page for some common problems and solutions.
To install bottom, refer to the installation section of the README.md, which contains a list of all the installation methods.
"},{"location":"#usage-and-configuration","title":"Usage and configuration","text":"
The command to run bottom is btm.
You can refer to the usage pages for more details on using bottom (e.g. keybinds, some features, a general overview of what each widget does).
To configure bottom (e.g. how it behaves, how it looks, etc.) refer to the command-line options page for temporary settings, or the config file page for more permanent settings.
New contributors are always welcome! See the contribution section for how to contribute to bottom, whether it be filing issues, writing documentation, creating pull requests, etc.
It's possible that your graphs don't look great out of the box due to the reliance on braille characters to draw them. This could cause problems if your terminal's font does not support them, or your terminal is not configured properly to draw them.
One alternative is to use the --dot_marker option to render graph charts using dots instead of the braille characters, which generally seems better supported out of the box, at the expense of looking less intricate:
Example using btm --dot_marker"},{"location":"troubleshooting/#use-a-font-that-supports-braille-fonts","title":"Use a font that supports braille fonts","text":"
Another (better) alternative is to install a font that supports braille fonts, and configure your terminal emulator to use it. For example, installing something like UBraille or Iosevka and ensuring your terminal uses it should work.
Solutions mostly depend on what terminal emulator you are using, so unfortunately, I can't give specific instructions. Here are some possible solutions:
Uninstalling gnu-free-fonts if installed, as that is known to cause problems with braille markers
Installing a font like ttf-symbola or ttf-ubraille for your terminal emulator to try and automatically fall back to
Configuring your terminal emulator to use specific fonts for the U+2800 to U+28FF range.
For example for kitty, do symbol_map U+2800-U+28FF Symbola.
For some more possible solutions:
Check out this issue from gotop about the same issue.
See ratatui's FAQ (ratatui is the underlying library bottom uses to draw things).
"},{"location":"troubleshooting/#windows-and-powershell","title":"Windows and Powershell","text":"
Note: I would advise backing up your registry beforehand if you aren't sure what you are doing!
Let's say you're installing Iosevka. The steps you can take are:
Install the font itself.
Open the registry editor, which you can do either by Win+R and opening regedit, or just opening it from the Start Menu.
Here, add a new String value, and set the Name to a bunch of 0's (e.g. 000 - make sure the name isn't already used), then set the Data to the font name (e.g. Iosevka).
The last entry is the new entry for Iosevka
Then, open the Command Prompt/PowerShell, and right-click on the top bar, and open \"Properties\":
From here, go to \"Font\", and set the font to your new font (so in this example, Iosevka):
"},{"location":"troubleshooting/#why-cant-i-see-all-my-temperature-sensors-on-windows","title":"Why can't I see all my temperature sensors on Windows?","text":"
This is a known issue, some sensors may require admin privileges to get sensor data.
"},{"location":"troubleshooting/#why-dont-i-see-dual-batteries-on-windows-reported-separately-eg-thinkpads","title":"Why don't I see dual batteries on Windows reported separately? (e.g. Thinkpads)","text":"
This is a known issue which seems to be with how batteries are being detected on Windows.
"},{"location":"troubleshooting/#why-cant-i-see-all-my-temperature-sensors-on-wsl","title":"Why can't I see all my temperature sensors on WSL?","text":"
This is a known limitation with WSL. Due to how it works, hosts may not expose their temperature sensors and therefore, temperature sensors might be missing.
"},{"location":"troubleshooting/#why-does-wsl2-not-match-task-manager","title":"Why does WSL2 not match Task Manager?","text":"
This is a known limitation with WSL2. Due to how WSL2 works, the two might not match up in terms of reported data.
"},{"location":"troubleshooting/#why-cant-i-see-all-my-processesprocess-data-on-macos","title":"Why can't I see all my processes/process data on macOS?","text":"
You may have to run the program with elevated privileges to work around it - for example:
sudo btm\n
Warning
Please note that you should be certain that you trust any software you grant root privileges.
There are measures taken to try to maximize the amount of information obtained without elevated privileges. For example, one can modify the instructions found on the htop wiki on how to run htop without sudo for bottom. However, please understand the potential security risks before doing so!
If your configuration files aren't working, here are a few things to try:
"},{"location":"troubleshooting/#check-the-formatting","title":"Check the formatting","text":"
It may be handy to refer to the automatically generated config files or the sample configuration files. The config files also follow the TOML format.
Also make sure your config options are under the right table - for example, to set your temperature type, you must set it under the [flags] table:
[flags]\ntemperature_type = \"f\"\n
Meanwhile, if you want to set a custom color scheme, it would be under the [styles] table:
[styles.tables.headers]\ncolor=\"LightBlue\"\n
To help validate your configuration files, there is JSON Schema support if your IDE/editor supports it.
"},{"location":"troubleshooting/#check-the-configuration-file-location","title":"Check the configuration file location","text":"
Make sure bottom is reading the right configuration file. By default, bottom looks for config files at these locations:
OS Default Config Location macOS $HOME/Library/Application Support/bottom/bottom.toml~/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Linux ~/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Windows C:\\Users\\<USER>\\AppData\\Roaming\\bottom\\bottom.toml
If you want to use a config file in another location, use the --config or -C flags along with the path to the configuration file, like so:
btm -C path_to_config\n
"},{"location":"troubleshooting/#my-installation-through-snap-has-some-widgets-that-are-blankshow-no-data","title":"My installation through snap has some widgets that are blank/show no data","text":"
Make sure bottom is given the correct permissions in order to collect data. Snapcraft explains how to do so, but the TL;DR is:
"},{"location":"troubleshooting/#i-dont-see-any-nvidia-gpu-information-while-using-a-musl-based-binary","title":"I don't see any NVIDIA GPU information while using a musl-based binary","text":"
The underlying interface we use for NVIDIA GPU information, nvml, only works with glibc and does not work with musl at the moment (see this forum post for some more details). As such, bottom may fail to get NVIDIA GPU information when using a musl-based binary until this is resolved. This applies to Linux and Windows from my understanding.
To resolve this, use glibc-based binary builds if possible (e.g. the gnu binaries/non-musl packages in releases).
"},{"location":"troubleshooting/#still-having-issues","title":"Still having issues?","text":"
If you're still having issues, feel free to open a discussion question about it, and I (or others) can try to help.
The following options can be provided to bottom in the command line to change the behaviour of the program. You can also see information on these options by running btm -h, or run btm --help to display more detailed information on each option:
"},{"location":"configuration/command-line-options/#general-options","title":"General Options","text":"Option Behaviour --autohide_time Temporarily shows the time scale in graphs. -b, --basic Hides graphs and uses a more basic look. -C, --config_location <PATH> Sets the location of the config file. -t, --default_time_value <TIME> Default time value for graphs. --default_widget_count <N> Sets the N'th selected widget type as the default. --default_widget_type <WIDGET> Sets the default widget type. Use --help for more info. --disable_click Disables mouse clicks. --disable_keys Disables keyboard shortcuts, INCLUDING the ones that stop bottom. -m, --dot_marker Uses a dot marker for graphs. -e, --expanded Expand the default widget upon starting the app. --hide_time Hides the time scale from being shown. -r, --rate <TIME> Sets how often data is refreshed. --retention <TIME> How far back data will be stored up to. --show_table_scroll_position Shows the list scroll position tracker in the widget title for table widgets. -d, --time_delta <TIME> The amount of time changed upon zooming."},{"location":"configuration/command-line-options/#process-options","title":"Process Options","text":"Option Behaviour -S, --case_sensitive Enables case sensitivity by default when searching. -u, --current_usage Calculates process CPU usage as a percentage of current usage rather than total usage. --disable_advanced_kill Hides additional stopping options on Unix-like systems. --read_only Prevents performing any actions that affect the system (e.g. stopping processes). --get_threads Also gather process thread information. -g, --group_processes Groups processes with the same name by default. No effect if --tree is set. --hide_k_threads Hide kernel threads by default. --process_memory_as_value Defaults to showing process memory usage by value. --process_command Shows the full command name instead of the process name by default. -R, --regex Enables regex by default while searching. -T, --tree Makes the process widget use tree mode by default. --tree_collapse Collapse process tree by default. -n, --unnormalized_cpu Show process CPU% usage without averaging over the number of CPU cores. -W, --whole_word Enables whole-word matching by default while searching."},{"location":"configuration/command-line-options/#temperature-options","title":"Temperature Options","text":"Option Behaviour -c, --celsius Use Celsius as the temperature unit. Default. -f, --fahrenheit Use Fahrenheit as the temperature unit. -k, --kelvin Use Kelvin as the temperature unit."},{"location":"configuration/command-line-options/#cpu-options","title":"CPU Options","text":"Option Behaviour --cpu_left_legend Puts the CPU chart legend on the left side. --default_cpu_entry Sets which CPU entry type is selected by default. -a, --hide_avg_cpu Hides the average CPU usage entry."},{"location":"configuration/command-line-options/#memory-options","title":"Memory Options","text":"Option Behaviour --memory_legend <POSITION> Where to place the legend for the memory chart widget. --enable_cache_memory Enable collecting and displaying cache and buffer memory. --free_arc Subtract freeable ARC from memory."},{"location":"configuration/command-line-options/#network-options","title":"Network Options","text":"Option Behaviour --network_legend <POSITION> Where to place the legend for the network chart widget. --network_use_bytes Displays the network widget using bytes. --network_use_binary_prefix Displays the network widget with binary prefixes. --network_use_log Displays the network widget with a log scale. --show_packets Displays packet rate and average packet size info. --use_old_network_legend (DEPRECATED) Uses a separate network legend."},{"location":"configuration/command-line-options/#battery-options","title":"Battery Options","text":"Option Behaviour --battery Shows the battery widget in non-custom layouts."},{"location":"configuration/command-line-options/#gpu-options","title":"GPU Options","text":"Option Behaviour --disable_gpu Disable collecting and displaying NVIDIA and AMD GPU information."},{"location":"configuration/command-line-options/#style-options","title":"Style Options","text":"Option Behaviour --theme <SCHEME> Use a built-in color theme, use '--help' for info on the colors."},{"location":"configuration/command-line-options/#other-options","title":"Other Options","text":"Option Behaviour -h, --help Prints help info (for more details use --help.) -V, --version Prints version information."},{"location":"configuration/config-file/","title":"Config File","text":"
For persistent configuration, and for certain configuration options, bottom supports config files.
If no config file argument is given, it will automatically look for a config file at these locations:
OS Default Config Location macOS $HOME/Library/Application Support/bottom/bottom.toml$HOME/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Linux $HOME/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Windows C:\\Users\\<USER>\\AppData\\Roaming\\bottom\\bottom.toml
If the config file doesn't exist at the path, bottom will automatically try to create a new config file at the location with default values.
The configuration file also has JSON Schema support to make it easier to manage, if your IDE/editor supports it.
"},{"location":"configuration/config-file/cpu/","title":"CPU","text":""},{"location":"configuration/config-file/cpu/#default-cpu-graph-selection","title":"Default CPU Graph Selection","text":"
You can configure which CPU graph is shown by default when starting up bottom by setting cpu.default.
[cpu]\n# One of \"all\" (default), \"average\"/\"avg\"\ndefault = \"average\"\n
You can configure which columns are shown by the disk table widget by setting the columns setting:
[disk]\n# Pick which columns you want to use in any order.\ncolumns = [\"Disk\", \"Mount\", \"Used\", \"Free\", \"Total\", \"Used%\", \"R/s\", \"W/s\"]\n
You can customize the default sort order (by default, it sorts by disk name). For example, to sort by the read rate:
[disk]\ndefault_sort = \"R/s\"\n
You can use any valid column name here (e.g. \"Disk\", \"Mount\", etc.). Note that if you put a column name that is not actually used, the default sort will just be the first column shown.
You can filter out what entries to show by configuring [disk.name_filter] and [disk.mount_filter] to filter by name and mount point respectively. In particular, you can set a list of things to filter with by setting list, and configure how that list is processed with the other options.
For example, consider a disk widget showing these entries:
If we wanted to ignoring any entry with a name that matches /dev/sda:
[disk.name_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"/dev/sda\"]\n\n# Whether to use regex. Defaults to false.\nregex = true\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
This would give us:
We can also combine both the name filter and mount filter. For example:
This section is in progress, and is just copied from the old documentation.
You can configure flags by putting them in [flags] table. Example:
[flags]\nhide_avg_cpu = true\n
Most of the command line flags have config file equivalents to avoid having to type them out each time:
Field Type Functionality hide_avg_cpu Boolean Hides the average CPU usage. dot_marker Boolean Uses a dot marker for graphs. cpu_left_legend Boolean Puts the CPU chart legend to the left side. current_usage Boolean Sets process CPU% to be based on current CPU%. group_processes Boolean Groups processes with the same name by default. case_sensitive Boolean Enables case sensitivity by default. whole_word Boolean Enables whole-word matching by default. regex Boolean Enables regex by default. basic Boolean Hides graphs and uses a more basic look. use_old_network_legend Boolean DEPRECATED - uses the older network legend. battery Boolean Shows the battery widget. rate Unsigned Int (represents milliseconds) or String (represents human time) Sets a refresh rate in ms. default_time_value Unsigned Int (represents milliseconds) or String (represents human time) Default time value for graphs in ms. time_delta Unsigned Int (represents milliseconds) or String (represents human time) The amount in ms changed upon zooming. hide_time Boolean Hides the time scale. temperature_type String (one of [\"k\", \"f\", \"c\", \"kelvin\", \"fahrenheit\", \"celsius\"]) Sets the temperature unit type. default_widget_type String (one of [\"cpu\", \"proc\", \"net\", \"temp\", \"mem\", \"disk\"], same as layout options) Sets the default widget type, use --help for more info. default_widget_count Unsigned Int (represents which default_widget_type) Sets the n'th selected widget type as the default. disable_click Boolean Disables mouse clicks. enable_cache_memory Boolean Enable cache and buffer memory stats (not available on Windows). process_memory_as_value Boolean Defaults to showing process memory usage by value. tree Boolean Defaults to showing the process widget in tree mode. show_table_scroll_position Boolean Shows the scroll position tracker in table widgets. show_table_scroll_bar Boolean Shows a scroll bar on the right edge of table widgets. process_command Boolean Show processes as their commands by default. disable_advanced_kill Boolean Disable being able to send signals to processes on supported Unix-like systems. Only available on Linux, macOS, and FreeBSD. read_only Boolean Prevents performing any actions that affect the system (e.g. stopping processes). network_use_binary_prefix Boolean Displays the network widget with binary prefixes. network_use_bytes Boolean Displays the network widget using bytes. network_use_log Boolean Displays the network widget with a log scale. disable_gpu Boolean Disable NVIDIA and AMD GPU data collection. retention String (human readable time, such as \"10m\", \"1h\", etc.) How much data is stored at once in terms of time. unnormalized_cpu Boolean Show process CPU% without normalizing over the number of cores. expanded Boolean Expand the default widget upon starting the app. memory_legend String (one of [\"none\", \"top-left\", \"top\", \"top-right\", \"left\", \"right\", \"bottom-left\", \"bottom\", \"bottom-right\"]) Where to place the legend for the memory widget. network_legend String (one of [\"none\", \"top-left\", \"top\", \"top-right\", \"left\", \"right\", \"bottom-left\", \"bottom\", \"bottom-right\"]) Where to place the legend for the network widget. average_cpu_row Boolean Moves the average CPU usage entry to its own row when using basic mode. tree_collapse Boolean Collapse process tree by default. autohide_time Boolean Temporarily shows the time scale in graphs. table_gap String (one of [\"none\", \"space\", \"line\"]) Controls the gap between table headers and data rows. Defaults to \"space\". disable_keys Boolean Disables keyboard shortcuts, including the ones that stop bottom. no_write Boolean Disables writing to the config file. hide_k_threads Boolean Hide kernel threads by default. free_arc Boolean Subtract freeable ARC from memory usage."},{"location":"configuration/config-file/layout/","title":"Layout","text":"
Warning
This section is in progress, and is just copied from the old documentation.
bottom supports customizable layouts via the config file. Currently, layouts are controlled by using TOML objects and arrays.
This would give a layout that has two rows, with a 1:2 ratio. The first row has only the CPU widget. The second row is split into two columns with a 4:3 ratio. The first column contains the memory widget. The second column is split into two rows with a 1:1 ratio. The first is the temperature widget, the second is the disk widget.
This is what the layout would look like when run:
Each [[row]] represents a row in the layout. A row can have any number of child values. Each [[row.child]] represents either a column or a widget. A column can have any number of child values as well. Each [[row.child.child]] represents a widget. A widget is represented by having a type field set to a string.
The following type values are supported:
\"cpu\" CPU chart and legend \"mem\", \"memory\" Memory chart \"net\", \"network\" Network chart and legend \"proc\", \"process\", \"processes\" Process table and search \"temp\", \"temperature\" Temperature table \"temp_graph\", \"temperature_graph\" Temperature graph \"disk\" Disk table \"empty\" An empty space \"batt\", \"battery\" Battery statistics
Each component of the layout accepts a ratio value. If this is not set, it defaults to 1.
Furthermore, you can have duplicate widgets.
For an example, look at the default config, which contains the default layout.
If you want to change some of the default behaviour of the network widget, you can configure some things in the config file.
Field Type Functionality show_packets Boolean Displays packet rate and average packet size info."},{"location":"configuration/config-file/network/#filtering-entries","title":"Filtering Entries","text":"
You can filter out what entries to show by configuring [network.interface_filter] . In particular, you can set a list of things to filter with by setting list, and configure how that list is processed with the other options.
For example, here we are ignoring any entry with a name that matches /dev/sda<NUMBERS>, or specifically /dev/nvme0n1p2.
[network.interface_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"virbr0.*\"]\n\n# Whether to use regex. Defaults to false.\nregex = true\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
If you want to change some of the default behaviour of the processes widget, you can configure some things in the config file.
Field Type Functionality get_threads Boolean Gather process thread information."},{"location":"configuration/config-file/processes/#columns","title":"Columns","text":"
You can configure which columns are shown by the process widget by setting the columns setting:
[processes]\n# Pick which columns you want to use in any order.\ncolumns = [\"cpu%\", \"mem%\", \"pid\", \"name\", \"read\", \"write\", \"tread\", \"twrite\", \"state\", \"user\", \"time\", \"gmem%\", \"gpu%\"]\n
By default, the process widget starts sorted by CPU usage. You can change the column it sorts by at startup:
[processes]\ndefault_sort = \"mem\"\n
Any of the column names accepted by columns work here (e.g. \"cpu%\", \"mem\", \"pid\", \"name\", \"read\"). If the column you pick is not actually shown by the widget, the built-in default is used instead.
The same setting is also exposed as a CLI flag, which takes precedence over the config file:
As there are a few ways styles can be applied to bottom, the order of which styles are prioritized are, in order of highest precedence to lowest precedence:
Built-in themes set via command-line args (e.g. btm --theme gruvbox)
Custom themes set via config file
Built-in themes set via config file
If nothing is set, it will fall back to the default theme.
You can configure the colours for components with strings that are either hex colours (e.g. \"#ffffff\"), RGB colours (e.g. \"255, 255, 255\"), or named colours. Named colours are one of the following strings:
Text can generally be styled using the following TOML table:
[field]\n# The foreground colour of text.\ncolor = \"black\"\n\n# The background colour of text.\nbg_color = \"blue\"\n\n# Whether to make the text bold.\nbold = false\n\n# Inline table version\nfield = { color = \"black\", bg_color = \"blue\", bold = false }\n
All fields are optional; by default if bg_color is not set then there will be no background color.
If you just want to style text by setting the foreground colour, for brevity, then you can also just set the field to be the colour itself. For example:
Config field Details Examples all_entry_color The colour of the \"All\" CPU label all_entry_color = \"Red\"avg_entry_color The colour of the average CPU label and graph line avg_entry_color = \"255, 0, 255\"cpu_core_colors Colour of each CPU threads' label and graph line. Read in order. cpu_core_colors = [\"Red\", \"Blue\", \"Green\"]"},{"location":"configuration/config-file/styling/#temperature-graph","title":"Temperature Graph","text":"
These can be set under [styles.temp_graph]:
Config field Details Examples temp_graph_color_styles Colour of each temperature sensor's graph line. Read in order. temp_graph_color_styles = [\"Red\", \"Blue\", \"Green\"]"},{"location":"configuration/config-file/styling/#memory","title":"Memory","text":"
These can be set under [styles.memory]:
Config field Details Examples ram_color The colour of the RAM label and graph line ram_color = \"Red\"cache_color The colour of the cache label and graph line. Does not do anything on Windows. cache_color = \"#ffffff\"swap_color The colour of the swap label and graph line swap_color = \"255, 0, 255\"arc_color The colour of the ARC label and graph line arc_color = \"Blue\"gpu_colors Colour of each GPU's memory label and graph line. Read in order. gpu_colors = [\"Red\", \"Blue\", \"Green\"]"},{"location":"configuration/config-file/styling/#network","title":"Network","text":"
These can be set under [styles.network]:
Config field Details Examples rx_color The colour of the RX (download) label and graph line rx_color = \"Red\"tx_color The colour of the TX (upload) label and graph line tx_color = \"#ffffff\"rx_total_color The colour of the total RX (download) label in basic mode rx_total_color = \"0, 0, 0\"tx_total_color The colour of the total TX (upload) label in basic mode tx_total_color = \"#000\""},{"location":"configuration/config-file/styling/#battery","title":"Battery","text":"
These can be set under [styles.battery]:
Config field Details Examples high_battery_color The colour of the battery widget bar when the battery is over 50% high_battery_color = \"Red\"medium_battery_color The colour of the battery widget bar when the battery between 10% to 50% medium_battery_color = \"#ffffff\"low_battery_color The colour of the battery widget bar when the battery is under 10% low_battery_color = \"0, 0, 0\""},{"location":"configuration/config-file/styling/#tables","title":"Tables","text":"
These can be set under [styles.tables]:
Config field Details Examples headers Text styling for table headers headers = { color = \"red\", bg_color = \"black\", bold = true }"},{"location":"configuration/config-file/styling/#graphs","title":"Graphs","text":"
These can be set under [styles.graphs]:
Config field Details Examples graph_color The general colour of the parts of the graph graph_color = \"white\"legend_text Text styling for graph's legend text legend_text = { color = \"black\", bg_color = \"blue\", bold = true }"},{"location":"configuration/config-file/styling/#general-widget-settings","title":"General widget settings","text":"
These can be set under [styles.widgets]:
Config field Details Examples border_color The colour of the widgets' borders border_color = \"white\"selected_border_color The colour of a widget's borders when the widget is selected selected_border_color = \"white\"widget_title Text styling for a widget's title widget_title = { color = \"black\", bg_color = \"blue\", bold = true }bg_color The background color of the widgets. bg_color = \"black\"text Text styling for text in general text = { color = \"black\", bg_color = \"blue\", bold = true }selected_text Text styling for text when representing something that is selected selected_text = { color = \"black\", bg_color = \"blue\", bold = true }disabled_text Text styling for text when representing something that is disabled disabled_text = { color = \"black\", bg_color = \"blue\", bold = true }thread_text Text styling for text when representing process threads. Only usable on Linux at the moment. thread_text = { color = \"green\", bg_color = \"blue\", bold = true }"},{"location":"configuration/config-file/temperature-graph/","title":"Temperature Graph","text":"
The temperature graph widget is configured under [temperature_graph].
The location of the legend can be set with legend_position. Valid values are none, top-left, top, top-right, left, right, bottom-left, bottom, and bottom-right. Defaults to top-right.
By default, the y-axis is bounded at 100\u00b0C (or the equivalent in the configured temperature_type) and grows automatically if a reading exceeds that. An explicit upper bound can be set with max_temp (uses the same unit as temperature_type). Sensor readings above this value will be drawn off the chart.
You can filter which sensors to plot by configuring [temperature_graph.sensor_filter]. This works the same way as the temperature table's filter.
For example, here we are ignoring any sensor that has \"cpu\" or \"wifi\" in its name:
[temperature_graph.sensor_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"cpu\", \"wifi\"]\n\n# Whether to use regex. Defaults to false.\nregex = false\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
You can filter out what entries to show by configuring [temperature.sensor_filter]. In particular you can set a list of things to filter with by setting list, and configure how that list is processed with the other options.
For example, here we are ignoring any sensor that has \"cpu\" or \"wifi\" in it.
[temperature.sensor_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"cpu\", \"wifi\"]\n\n# Whether to use regex. Defaults to false.\nregex = false\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
"},{"location":"contribution/documentation/","title":"Documentation","text":""},{"location":"contribution/documentation/#when-should-documentation-changes-be-done","title":"When should documentation changes be done?","text":"
Whenever a new feature is added, a bug is fixed, or a breaking change is made, it should be documented where appropriate (ex: README.md, changelog, etc.)
New methods of installation are always appreciated and should be documented
"},{"location":"contribution/documentation/#what-pages-need-documentation","title":"What pages need documentation?","text":"
There are a few areas where documentation changes are often needed:
The README.md
The help menu inside of the application (located here)
The extended documentation (what you're reading right now)
The CHANGELOG.md
"},{"location":"contribution/documentation/#how-should-i-addupdate-documentation","title":"How should I add/update documentation?","text":"
Fork the repository to make changes in.
Where you're adding documentation will probably affect what you need to do:
README.md or CHANGELOG.md
For changes to README.md and CHANGELOG.md, just follow the formatting provided and use any editor.
Generally, changes to CHANGELOG.md will be handled by a maintainer, and the contents of the file should follow the Keep a Changelog format, as well as link to the relevant PR or issues.
Help menu
For changes to the help menu, try to refer to the existing code within src/constants.rs on how the help menu is generated.
Extended documentation
For changes to the extended documentation, you'll probably want at least Python 3.11 (older and newer versions should be fine), MkDocs, Material for MkDocs, mdx_truly_sane_lists, and optionally Mike installed. These can help with validating your changes locally.
You can do so through pip or your system's package managers. If you use pip, you can use venv to cleanly install the documentation dependencies:
# Change directories to the documentation.\ncd docs/\n\n # Create venv, install the dependencies, and serve the page.\n./serve.sh\n
This will serve a local version of the docs that you can open on your browser. It will update as you make changes.
Once you have your documentation changes done, submit it as a pull request. For more information regarding that, refer to Issues, Pull Requests, and Discussions.
"},{"location":"contribution/issues-and-pull-requests/","title":"Issues, Pull Requests, and Discussions","text":""},{"location":"contribution/issues-and-pull-requests/#discussions","title":"Discussions","text":"
Discussions are open in the repo. As for the difference between discussions and issues:
Open an issue if what you have enough information to properly fill out any details needed for a report or request.
Open a discussion otherwise (e.g. asking a question).
"},{"location":"contribution/issues-and-pull-requests/#opening-an-issue","title":"Opening an issue","text":""},{"location":"contribution/issues-and-pull-requests/#bug-reports","title":"Bug reports","text":"
When filing a bug report, please use the bug report template and fill in as much as you can. It is incredibly difficult for a maintainer to fix a bug when it cannot be reproduced, and giving as much detail as possible generally helps to make it easier to reproduce the problem!
Please use the feature request template and fill it out. Remember to give details about what the feature is along with why you think this suggestion will be useful.
Also, please check whether an existing issue has covered your specific feature request!
Make any documentation changes if necessary - if you add a new feature, it'll probably need documentation changes. See here for tips on documentation.
Commit and create a pull request to merge into the main branch. Please fill out the pull request template and checklist.
Ask a maintainer to review your pull request.
Check if the CI workflow passes. These consist of clippy lints, rustfmt checks, and basic tests. If you are a first-time contributor, you may need to wait for a maintainer to let CI run.
If changes are suggested or any comments are made, they should probably be addressed.
Once it looks good, it'll be merged! Note that generally, PRs are squashed to maintain repo cleanliness, though feel free to ask otherwise if that isn't preferable.
Some other things related to making changes or pull requests:
Please review your code yourself before you create the PR and ask for a review.
I'm fine if you use AI to help with your change, but I expect you to still review the changes yourself.
If you are adding or changing any dependency, I expect a justification on why this is necessary.
Please ensure that any changes made are compatible with the license of bottom.
"},{"location":"contribution/packaging-and-distribution/","title":"Packaging and Distribution","text":"
Package maintainers are always welcome and appreciated! Here's some info on how one can help with package distribution and bottom.
The latest stable release can be found here, where you can find pre-built binaries in either a tar.gz or zip format. Binaries here also include automatically generated shell completion files for zsh, bash, fish, and Powershell, which you may want to also install during the packaging process.
You can also find a nightly build in the releases page, built every day at 00:00 UTC off of the main branch.
In both cases, we use GitHub Actions to create our release binaries. build_releases.yml contains the GitHub Action workflow for this.
If you want to manually build bottom rather than distributing a pre-built binary, you'll need the most recent version of stable Rust, which you can get with:
rustup update stable\n
You'll then want to build with:
cargo build --release --locked\n
"},{"location":"contribution/packaging-and-distribution/#manpage-and-completion-generation","title":"Manpage and completion generation","text":"
bottom uses a build.rs script to automatically generate a manpage and shell completions for the following shells:
Bash
Zsh
Fish
Powershell
Elvish
If you want to generate manpages and/or completion files, set the BTM_GENERATE env var to a non-empty value. For example, run something like this:
This will automatically generate completion and manpage files in target/tmp/bottom/. If you wish to regenerate the files, modify/delete either these files or set BTM_GENERATE to some other non-empty value to retrigger the build script.
You may override the default directories used to generate both completion and manpage files by specifying the COMPLETION_DIR and MANPAGE_DIR environment variables respectively.
For more information, you may want to look at either the build.rs file or the binary build CI workflow.
"},{"location":"contribution/packaging-and-distribution/#adding-an-installation-source","title":"Adding an installation source","text":"
Once you've finished your installation source, if you want to mention it in the main bottom repo, fork the repo and add the installation method and any details to the README.md file under the Installation section, as well as a corresponding table of contents entry. Once that's done, open a pull request - these will usually be approved of very quickly.
You can find more info on the contribution process here.
bottom manages its own binary builds for nightly and stable release purposes. The core build workflow is handled by build_releases.yml, called by a wrapper workflow for nightly and stable releases. Builds take place via GitHub Actions.
The main things built are:
Binaries for various platforms
MSI installer for Windows
.deb package for Debian and its derivatives
This documentation gives a high-level overview of the build process for each part. For the most up-to-date and detailed reference, definitely refer back to the build_releases.yml file.
bottom currently has two main deploy processes to worry about:
Nightly: a daily (00:00 UTC) GitHub action to build binary/installer files, and upload them to the nightly release (example). It can also be triggered manually as either a proper nightly release or a mock release.
Stable: a stable deployment, triggered manually or upon creation of a valid tag. This is a GitHub action that builds binary/installer files and uploads them to a new GitHub release.
Furthermore, this workflow does not handle the following deployments, which must be manually handled:
This is, for the most part, automatic, though it can also be used as a way of testing build workflow changes and seeing if binaries can be successfully built at all against all the targets we want to build for.
If one does not want to actually update the nightly release, and just want to test the general builds and workflow, one can run the workflow manually on a branch of choice with \"mock\" set as the parameter. Changing it to anything else will trigger a non-mock run.
This can be manually triggered, though the general use-case is setting a tag of the form x.y.z (after checking everything is good, of course). For example:
git tag 0.6.9 && git push origin 0.6.9\n
This will automatically trigger the deployment workflow, and create a draft release with the files uploaded. One still needs to fill in the details and release it.
Furthermore, there are some deployments that are handled by maintainers of bottom that this workflow does not automatically finish. These must be manually handled.
Validate everything builds properly and works (you should have done this before releasing though). If good, then deploying on crates.io is as simple as:
Upon releasing on GitHub, choco-bottom will automatically be updated with a new PR with the correct deployment files for Chocolatey. Check the PR, merge it if it is correct, then pull locally and deploy following the instructions in the README. Make sure to test installation and running at least once before deploying!
If done correctly, there should be a new build on Chocolatey, which will take some time to validate.
bottom officially supports the following operating systems and corresponding architectures:
macOS (x86_64, aarch64)
Linux (x86_64, i686, aarch64)
Windows (x86_64, i686)
These platforms are tested to work (with caveats, see below) and issues on these platforms will be fixed if possible.
Furthermore, binaries are expected to be built and tested using the most recent version of stable Rust - if you are manually building bottom from the repo/source, then please try that as well.
If you encounter any issues, see the troubleshooting page or open an issue/discussion on GitHub.
Systems and architectures that aren't officially supported may still work, but there are no guarantees on how much will work. For example, it might only compile, or it might run with bugs/broken features. Furthermore, while it will depend on the problem at the end of the day, issues on unsupported platforms are likely to go unfixed.
Unofficially supported platforms known to compile/work:
FreeBSD
Linux on ARMv7 and ARMv6 (tested to compile in CI)
Linux on PowerPC 64 LE (tested to compile in CI)
Linux on an RISC-V (tested to compile in CI, tested to run on an Allwinner D1 Nezha)
If you encounter any issues, see the troubleshooting page or open an issue/discussion on GitHub - though as mentioned, unsupported platforms may go unfixed.
The release binaries in the releases page are packaged with shell auto-completion files for Bash, Zsh, fish, Powershell, Elvish, Fig, and Nushell. To install them:
For Bash, move btm.bash to $XDG_CONFIG_HOME/bash_completion or /etc/bash_completion.d/.
For Zsh, move _btm to one of your $fpath directories.
For fish, move btm.fish to $HOME/.config/fish/completions/.
For PowerShell, add _btm.ps1 to your PowerShell profile.
For Elvish, the completion file is btm.elv.
For Fig, the completion file is btm.ts.
For Nushell, source btm.nu.
The individual auto-completion files are also included in the stable/nightly releases as completion.tar.gz if needed.
In this mode, widgets that use tables (temperatures, processes, disks, and batteries) are only shown one at a time. One can switch between these widgets either by clicking the arrow buttons or by using the general widget selection shortcuts (for example, Ctrl+Left or H) to switch which widget is shown.
Also note that in this mode, widget expansion and custom layouts are disabled.
Basic mode follows the same key bindings as normal, barring widget expansion being disabled, and that the % key while selecting the memory widget toggles between total usage and percentage.
By default, bottom is somewhat like a dashboard - a bunch of different widgets, all showing different things, and they all cram together to fit into one terminal.
If you instead just want to see one widget - maybe you want to look at a graph in more detail, for example - you can \"expand\" the currently selected widget using the e key, which will hide all other widgets and make that widget take up all available terminal space.
You can leave this state by either pressing e again or pressing Esc.
To allow for widget-specific keybindings and expansion, there is the idea of widget selection in bottom, where you can focus on a specific widget to work with it. This can be done with the mouse (just click on the widget of interest) or keyboard (ex: Ctrl+Direction, see Key bindings for alternatives).
These are global or common keyboard shortcuts for the application, which you can see in-app through the ? shortcut. Note that key bindings are generally case-sensitive.
Binding Action q , Ctrl+c Quit Esc Close dialog windows, search, widgets, or exit expanded mode Ctrl+r Reset display and any collected data f Freeze/unfreeze updating with new data ? Open help menu e Toggle expanding the currently selected widget Ctrl+Up Shift+Up K W Select the widget above Ctrl+Down Shift+Down J S Select the widget below Ctrl+Left Shift+Left H A Select the widget on the left Ctrl+Right Shift+Right L D Select the widget on the right Up , k Move up within a widget Down , j Move down within a widget Left h Alt+h Move left within a widget Right l Alt+l Move right within a widget g+g , Home Jump to the first entry G , End Jump to the last entry Page Up , Page Down Scroll up/down a table by a page Ctrl+u Scroll up a table by half a page Ctrl+d Scroll down a table by half a page"},{"location":"usage/general-usage/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects the widget"},{"location":"usage/widgets/battery/","title":"Battery Widget","text":"
Warning
The battery features are unavailable if the binary is compiled with the battery feature disabled or if there are no batteries on the system!
The battery widget provides information about batteries on the system.
The battery widget can be enabled through either the --battery flag, the battery = true option in a config file, or specifying the widget in a custom layout.
Note that key bindings are generally case-sensitive.
Binding Action Left h Alt+h Moves to the battery entry to the left of the current one Right l Alt+l Moves to the battery entry to the right of the current one"},{"location":"usage/widgets/battery/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects a battery entry"},{"location":"usage/widgets/cpu/","title":"CPU Widget","text":"
The CPU widget displays a visual representation of CPU usage over a time range.
The CPU widget is composed of two parts: the graph and the legend:
The graph displays the usage data for the currently selected entry as a percentage
The legend displays all available entries that can be displayed on the graph along with their last recorded use percentage (except for the \"All\" option)
Users can scroll through the legend using either the keyboard or mouse to select which entry to display on the graph. The \"All\" option shows every entry at the same time, though this may get a bit hard to follow if you have a large number of cores/threads.
One can also adjust the displayed time range through either the keyboard or mouse, with a range of 30s to 600s.
Note that key bindings are generally case-sensitive.
"},{"location":"usage/widgets/cpu/#graph","title":"Graph","text":"Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/cpu/#legend","title":"Legend","text":"Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the legend G , End Jump to the last entry in the legend"},{"location":"usage/widgets/cpu/#mouse-bindings","title":"Mouse bindings","text":""},{"location":"usage/widgets/cpu/#graph_1","title":"Graph","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/cpu/#legend_1","title":"Legend","text":"Binding Action Scroll Scroll through options to display in the graph Left Button Selects a CPU thread/average to show in the graph"},{"location":"usage/widgets/disk/","title":"Disk Widget","text":"
The disk widget provides a table of useful disk and partition information, like I/O per second and total usage.
Note that key bindings are generally case-sensitive.
Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table d Sort by disk, press again to reverse sorting order m Sort by mount, press again to reverse sorting order u Sort by amount used, press again to reverse sorting order n Sort by amount free, press again to reverse sorting order t Sort by total space available, press again to reverse sorting order p Sort by percentage used, press again to reverse sorting order r Sort by read rate, press again to reverse sorting order w Sort by write rate, press again to reverse sorting order"},{"location":"usage/widgets/disk/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects an entry in the table"},{"location":"usage/widgets/memory/","title":"Memory Widget","text":"
The memory widget provides a visual representation of RAM and swap usage over time.
The legend displays the current usage in terms of percentage and actual usage in binary units (KiB, MiB, GiB, etc.). If the total RAM or swap available is 0, then it is automatically hidden from the legend and graph.
One can also adjust the displayed time range through either the keyboard or mouse, with a range of 30s to 600s.
This widget can also be configured to display Nvidia and AMD GPU memory usage (--disable_gpu on Linux/Windows to disable) or cache memory usage (--enable_cache_memory).
Note that key bindings are generally case-sensitive.
Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/memory/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/memory/#how-are-memory-values-determined","title":"How are memory values determined?","text":""},{"location":"usage/widgets/memory/#linux","title":"Linux","text":"
Memory usage is calculated using the following formula based on values from /proc/meminfo (based on htop's implementation):
In Windows, we calculate swap by querying Get-Counter \"\\Paging File(*)\\% Usage\". This is also what some libraries like psutil use. However, note there are also a few other valid methods of representing \"swap\" in Windows (e.g. using GetPerformanceInfo), which all slightly don't match.
The network widget provides a visual representation of network input and output per second, as well as noting the total amount received and transmitted.
The legend displays the current reads and writes per second in bits, as well as the total amount read/written.
The y-axis automatically scales based on shown read/write values, and by default, is a linear scale based on base-10 units (e.x. kilobit, gigabit, etc.). Through configuration, the read/write per second unit can be changed to bytes, while the y-axis can be changed to a log scale and/or use base-2 units (e.x. kibibit, gibibit, etc.).
One can also adjust the displayed time range through either the keyboard or mouse, with a range of 30s to 600s.
Note that key bindings are generally case-sensitive.
Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/network/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/process/","title":"Process Widget","text":"
The process widget displays a table containing information regarding a running process, along with sorting, searching, and process control features.
The table can be sorted by clicking on the table headers, which will either sort the table by that column, or if already sorting by that column, reverse the sorting order.
Alternatively, one can sort using the sort menu sub-widget, which is brought up using s or F6, and can be controlled by arrow keys or the mouse.
Pressing Tab in the table will group entries with the same name together. The PID column will be replaced with the number of entries in each group, and usage is added together when displayed.
Info
Note that the process state and user columns are disabled in this mode.
Info
Note that if tree mode is also active, processes cannot be grouped together due to the behaviour of the two modes somewhat clashing. This also reflects with default modes like group_processes.
Pressing d+d or F9 will allow you to terminate the currently selected process/process group. On Unix-like operating systems, you are also able to control which specific signals to send (e.g. SIGKILL, SIGTERM).
The process termination menu on Linux
If you're on Windows, or if the disable_advanced_kill flag is set in the options or command-line (only available on Linux, macOS, and FreeBSD), then a simpler termination screen with just yes or no options will be shown.
The process termination menu on Windows"},{"location":"usage/widgets/process/#tree-mode","title":"Tree mode","text":"
Pressing t or F5 in the table toggles tree mode in the process widget, displaying processes in regard to their parent-child process relationships.
A process in tree mode can also be \"collapsed\", hiding its children and any descendants, using the either the -, +, or Left keys, or clicking on an entry. It can be expanded by using the -, +, or Right keys, or by clicking on the entry again. The Space key can also be used to toggle between the collapsed and expanded states.
Info
Note that if tree mode is active, processes cannot be grouped together due to the behaviour of the two modes somewhat clashing. This also reflects with default modes like group_processes.
Note all keywords are case-insensitive. To search for a process/command that collides with a keyword, surround the term with quotes (e.x. \"cpu\").
Keywords Example Description btm Matches by process or command name; supports regex pidpid=1044 Matches by PID; supports regex cpucpu%cpu > 0.5 Matches the CPU column; supports comparison operators membmemb > 1000 b Matches the memory column in terms of bytes; supports comparison operators memmem%mem < 0.5 Matches the memory column in terms of percent; supports comparison operators readr/srpsread = 1 mb Matches the read/s column in terms of bytes; supports comparison operators writew/swpswrite >= 1 kb Matches the write/s column in terms of bytes; supports comparison operators treadt.readtread <= 1024 gb Matches the total read column in terms of bytes; supports comparison operators twritet.writetwrite > 1024 tb Matches the total write column in terms of bytes; supports comparison operators useruser=root Matches by user; supports regex statestate=running Matches by state; supports regex ()(<COND 1> AND <COND 2>) OR <COND 3> Group together a condition gmemgmem > 1000 b Matches the gpu memory column in terms of bytes; supports comparison operators gmem%gmem% < 0.5 Matches the gpu memory column in terms of percent; supports comparison operators gpu%gpu% > 0 Matches the gpu usage column in terms of percent; supports comparison operators"},{"location":"usage/widgets/process/#comparison-operators","title":"Comparison operators","text":"Keywords Description = Checks if the values are equal != Checks if the values are not equal > Checks if the left value is strictly greater than the right < Checks if the left value is strictly less than the right >= Checks if the left value is greater than or equal to the right <= Checks if the left value is less than or equal to the right"},{"location":"usage/widgets/process/#logical-operators","title":"Logical operators","text":"
Note all operators are case-insensitive, and the and operator takes precedence over the or operator.
Keywords Usage Description and&&<Space><COND 1> and <COND 2><COND 1> && <COND 2><COND 1> <COND 2> Requires both conditions to be true to match or||<COND 1> or <COND 2><COND 1> || <COND 2> Requires at least one condition to be true to match !!<COND>!(<COND 1> or <COND 2>) Inverts the following condition or group
! is reserved as an operator, so it cannot appear bare as a value. To match a literal ! in a name or string field, quote it \u2014 e.g. \"foo!\" or user = \"!\". A bare ! with nothing parseable after it (such as user = ! or ! on its own) is rejected.
Note that key bindings are generally case-sensitive.
"},{"location":"usage/widgets/process/#process-table","title":"Process table","text":"Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table d+d , F9 Send a kill signal to the selected process c Sort by CPU usage, press again to reverse sorting order m Sort by memory usage, press again to reverse sorting order p Sort by PID name, press again to reverse sorting order n Sort by process name, press again to reverse sorting order Tab Toggle grouping processes with the same name P Toggle between showing the full command or just the process name Ctrl+f , / Toggle showing the search sub-widget s , F6, Del (Fn+Del on macOS) Toggle showing the sort sub-widget I Invert the current sort % Toggle between values and percentages for memory usage t , F5 Toggle tree mode M Sort by gpu memory usage, press again to reverse sorting order C Sort by gpu usage, press again to reverse sorting order z Toggle the hiding of kernel threads"},{"location":"usage/widgets/process/#sort-sub-widget","title":"Sort sub-widget","text":"Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table Esc Close the sort sub-widget Enter Sorts the corresponding process table"},{"location":"usage/widgets/process/#search-sub-widget","title":"Search sub-widget","text":"Binding Action Left h Alt+h Moves the cursor left Right l Alt+l Moves the cursor right Esc Close the search widget (retains the filter) Ctrl+a Skip to the start of the search query Ctrl+e Skip to the end of the search query Ctrl+u Clear the current search query Ctrl+w Delete a word behind the cursor Ctrl+h Delete the character behind the cursor Backspace Delete the character behind the cursor Del (Fn+Del on macOS) Delete the character at the cursor Alt+c , F1 Toggle matching case Alt+w , F2 Toggle matching the entire word Alt+r , F3 Toggle using regex"},{"location":"usage/widgets/process/#mouse-bindings","title":"Mouse bindings","text":""},{"location":"usage/widgets/process/#process-table_1","title":"Process table","text":"Binding Action Scroll Selects a CPU thread/average to show in the graph Left Button Table header: Sorts/reverse sorts the table by the column Table entry: Selects an entry in the table, if in tree mode, collapses/expands the entry's children"},{"location":"usage/widgets/process/#sort-sub-widget_1","title":"Sort sub-widget","text":"Binding Action Left Button Selects an entry in the table"},{"location":"usage/widgets/temperature-graph/","title":"Temperature Graph Widget","text":"
The temperature graph widget provides temperature readings over time.
Each detected sensor is drawn as its own line. The y-axis is in the configured temperature unit (Celsius by default; see the temperature_type flag).
By default the y-axis is bounded at 100\u00b0C (or the equivalent in the configured unit) and grows automatically. An upper bound can also be set explicitly via the config file.
The displayed time range can be adjusted through either the keyboard or mouse.
Note that key bindings are generally case-sensitive.
Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/temperature-graph/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/temperature-table/","title":"Temperature Widget","text":"
The temperature widget provides a table of temperature sensors and their current temperature.
Note that key bindings are generally case-sensitive.
Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table t Sort by temperature, press again to reverse sorting order s Sort by sensor name, press again to reverse sorting order"},{"location":"usage/widgets/temperature-table/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects an entry in the table"}]}
\ No newline at end of file
+{"config":{"lang":["en"],"separator":"[\\s\\-]+","pipeline":["stopWordFilter"],"fields":{"title":{"boost":1000.0},"text":{"boost":1.0},"tags":{"boost":1000000.0}}},"docs":[{"location":"","title":"bottom","text":"
A customizable cross-platform graphical process/system monitor for the terminal, supporting Linux, macOS, and Windows. Inspired by other tools like gtop, gotop, and htop.
This site serves as extended documentation for bottom alongside the README.md.
Warning
Some areas of this site are still in progress and may be missing details. Feel free to suggest/contribute changes!
It's as good idea to first check out the Support page to see if your system is officially supported!
Tip
If you're facing some issues during/after installation, check out the Troubleshooting page for some common problems and solutions.
To install bottom, refer to the installation section of the README.md, which contains a list of all the installation methods.
"},{"location":"#usage-and-configuration","title":"Usage and configuration","text":"
The command to run bottom is btm.
You can refer to the usage pages for more details on using bottom (e.g. keybinds, some features, a general overview of what each widget does).
To configure bottom (e.g. how it behaves, how it looks, etc.) refer to the command-line options page for temporary settings, or the config file page for more permanent settings.
New contributors are always welcome! See the contribution section for how to contribute to bottom, whether it be filing issues, writing documentation, creating pull requests, etc.
It's possible that your graphs don't look great out of the box due to the reliance on braille characters to draw them. This could cause problems if your terminal's font does not support them, or your terminal is not configured properly to draw them.
One alternative is to use the --dot_marker option to render graph charts using dots instead of the braille characters, which generally seems better supported out of the box, at the expense of looking less intricate:
Example using btm --dot_marker"},{"location":"troubleshooting/#use-a-font-that-supports-braille-fonts","title":"Use a font that supports braille fonts","text":"
Another (better) alternative is to install a font that supports braille fonts, and configure your terminal emulator to use it. For example, installing something like UBraille or Iosevka and ensuring your terminal uses it should work.
Solutions mostly depend on what terminal emulator you are using, so unfortunately, I can't give specific instructions. Here are some possible solutions:
Uninstalling gnu-free-fonts if installed, as that is known to cause problems with braille markers
Installing a font like ttf-symbola or ttf-ubraille for your terminal emulator to try and automatically fall back to
Configuring your terminal emulator to use specific fonts for the U+2800 to U+28FF range.
For example for kitty, do symbol_map U+2800-U+28FF Symbola.
For some more possible solutions:
Check out this issue from gotop about the same issue.
See ratatui's FAQ (ratatui is the underlying library bottom uses to draw things).
"},{"location":"troubleshooting/#windows-and-powershell","title":"Windows and Powershell","text":"
Note: I would advise backing up your registry beforehand if you aren't sure what you are doing!
Let's say you're installing Iosevka. The steps you can take are:
Install the font itself.
Open the registry editor, which you can do either by Win+R and opening regedit, or just opening it from the Start Menu.
Here, add a new String value, and set the Name to a bunch of 0's (e.g. 000 - make sure the name isn't already used), then set the Data to the font name (e.g. Iosevka).
The last entry is the new entry for Iosevka
Then, open the Command Prompt/PowerShell, and right-click on the top bar, and open \"Properties\":
From here, go to \"Font\", and set the font to your new font (so in this example, Iosevka):
"},{"location":"troubleshooting/#why-cant-i-see-all-my-temperature-sensors-on-windows","title":"Why can't I see all my temperature sensors on Windows?","text":"
This is a known issue, some sensors may require admin privileges to get sensor data.
"},{"location":"troubleshooting/#why-dont-i-see-dual-batteries-on-windows-reported-separately-eg-thinkpads","title":"Why don't I see dual batteries on Windows reported separately? (e.g. Thinkpads)","text":"
This is a known issue which seems to be with how batteries are being detected on Windows.
"},{"location":"troubleshooting/#why-cant-i-see-all-my-temperature-sensors-on-wsl","title":"Why can't I see all my temperature sensors on WSL?","text":"
This is a known limitation with WSL. Due to how it works, hosts may not expose their temperature sensors and therefore, temperature sensors might be missing.
"},{"location":"troubleshooting/#why-does-wsl2-not-match-task-manager","title":"Why does WSL2 not match Task Manager?","text":"
This is a known limitation with WSL2. Due to how WSL2 works, the two might not match up in terms of reported data.
"},{"location":"troubleshooting/#why-cant-i-see-all-my-processesprocess-data-on-macos","title":"Why can't I see all my processes/process data on macOS?","text":"
You may have to run the program with elevated privileges to work around it - for example:
sudo btm\n
Warning
Please note that you should be certain that you trust any software you grant root privileges.
There are measures taken to try to maximize the amount of information obtained without elevated privileges. For example, one can modify the instructions found on the htop wiki on how to run htop without sudo for bottom. However, please understand the potential security risks before doing so!
If your configuration files aren't working, here are a few things to try:
"},{"location":"troubleshooting/#check-the-formatting","title":"Check the formatting","text":"
It may be handy to refer to the automatically generated config files or the sample configuration files. The config files also follow the TOML format.
Also make sure your config option settings are in the right location - for example, to set your temperature type, you must set it under the [flags] table:
[flags]\ntemperature_type = \"f\"\n
Meanwhile, if you want to set a custom colour or styling scheme, it would be under the [styles] table - for example:
To help validate your configuration files, there is JSON Schema support if your IDE/editor supports it.
"},{"location":"troubleshooting/#check-the-configuration-file-location","title":"Check the configuration file location","text":"
Make sure bottom is reading the right configuration file. By default, bottom looks for config files at these locations:
OS Default Config Location macOS $HOME/Library/Application Support/bottom/bottom.toml~/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Linux ~/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Windows C:\\Users\\<USER>\\AppData\\Roaming\\bottom\\bottom.toml
If you want to use a config file in another location, use the --config or -C flags along with the path to the configuration file, like so:
btm -C path_to_config\n
"},{"location":"troubleshooting/#my-installation-through-snap-has-some-widgets-that-are-blankshow-no-data","title":"My installation through snap has some widgets that are blank/show no data","text":"
Make sure bottom is given the correct permissions in order to collect data. Snapcraft explains how to do so, but the TL;DR is:
"},{"location":"troubleshooting/#i-dont-see-any-nvidia-gpu-information-while-using-a-musl-based-binary","title":"I don't see any NVIDIA GPU information while using a musl-based binary","text":"
The underlying interface we use for NVIDIA GPU information, nvml, only works with glibc and does not work with musl at the moment (see this forum post for some more details). As such, bottom may fail to get NVIDIA GPU information when using a musl-based binary until this is resolved. This applies to Linux and Windows from my understanding.
To resolve this, use glibc-based binary builds if possible (e.g. the gnu binaries/non-musl packages in releases).
"},{"location":"troubleshooting/#still-having-issues","title":"Still having issues?","text":"
If you're still having issues, feel free to open a discussion question about it, and I (or others) can try to help.
The following options can be provided to bottom in the command line to change the behaviour of the program. You can also see information on these options by running btm -h, or run btm --help to display more detailed information on each option:
"},{"location":"configuration/command-line-options/#general-options","title":"General Options","text":"Option Behaviour --autohide_time Temporarily shows the time scale in graphs. -b, --basic Hides graphs and uses a more basic look. -C, --config_location <PATH> Sets the location of the config file. -t, --default_time_value <TIME> Default time value for graphs. --default_widget_count <N> Sets the N'th selected widget type as the default. --default_widget_type <WIDGET> Sets the default widget type. Use --help for more info. --disable_click Disables mouse clicks. --disable_keys Disables keyboard shortcuts, INCLUDING the ones that stop bottom. -m, --dot_marker Uses a dot marker for graphs. -e, --expanded Expand the default widget upon starting the app. --hide_time Hides the time scale from being shown. -r, --rate <TIME> Sets how often data is refreshed. --retention <TIME> How far back data will be stored up to. --show_table_scroll_position Shows the list scroll position tracker in the widget title for table widgets. -d, --time_delta <TIME> The amount of time changed upon zooming."},{"location":"configuration/command-line-options/#process-options","title":"Process Options","text":"Option Behaviour -S, --case_sensitive Enables case sensitivity by default when searching. -u, --current_usage Calculates process CPU usage as a percentage of current usage rather than total usage. --disable_advanced_kill Hides additional stopping options on Unix-like systems. --read_only Prevents performing any actions that affect the system (e.g. stopping processes). --get_threads Also gather process thread information. -g, --group_processes Groups processes with the same name by default. No effect if --tree is set. --hide_k_threads Hide kernel threads by default. --process_memory_as_value Defaults to showing process memory usage by value. --process_command Shows the full command name instead of the process name by default. -R, --regex Enables regex by default while searching. -T, --tree Makes the process widget use tree mode by default. --tree_collapse Collapse process tree by default. -n, --unnormalized_cpu Show process CPU% usage without averaging over the number of CPU cores. -W, --whole_word Enables whole-word matching by default while searching."},{"location":"configuration/command-line-options/#temperature-options","title":"Temperature Options","text":"Option Behaviour -c, --celsius Use Celsius as the temperature unit. Default. -f, --fahrenheit Use Fahrenheit as the temperature unit. -k, --kelvin Use Kelvin as the temperature unit."},{"location":"configuration/command-line-options/#cpu-options","title":"CPU Options","text":"Option Behaviour --cpu_left_legend Puts the CPU chart legend on the left side. --default_cpu_entry Sets which CPU entry type is selected by default. -a, --hide_avg_cpu Hides the average CPU usage entry."},{"location":"configuration/command-line-options/#memory-options","title":"Memory Options","text":"Option Behaviour --memory_legend <POSITION> Where to place the legend for the memory chart widget. --enable_cache_memory Enable collecting and displaying cache and buffer memory. --free_arc Subtract freeable ARC from memory."},{"location":"configuration/command-line-options/#network-options","title":"Network Options","text":"Option Behaviour --network_legend <POSITION> Where to place the legend for the network chart widget. --network_use_bytes Displays the network widget using bytes. --network_use_binary_prefix Displays the network widget with binary prefixes. --network_use_log Displays the network widget with a log scale. --show_packets Displays packet rate and average packet size info. --use_old_network_legend (DEPRECATED) Uses a separate network legend."},{"location":"configuration/command-line-options/#battery-options","title":"Battery Options","text":"Option Behaviour --battery Shows the battery widget in non-custom layouts."},{"location":"configuration/command-line-options/#gpu-options","title":"GPU Options","text":"Option Behaviour --disable_gpu Disable collecting and displaying NVIDIA and AMD GPU information."},{"location":"configuration/command-line-options/#style-options","title":"Style Options","text":"Option Behaviour --theme <SCHEME> Use a built-in colour theme, use '--help' for info on the colours."},{"location":"configuration/command-line-options/#other-options","title":"Other Options","text":"Option Behaviour -h, --help Prints help info (for more details use --help.) -V, --version Prints version information."},{"location":"configuration/config-file/","title":"Config File","text":"
For persistent configuration, and for certain configuration options, bottom supports config files.
If no config file argument is given, it will automatically look for a config file at these locations:
OS Default Config Location macOS $HOME/Library/Application Support/bottom/bottom.toml$HOME/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Linux $HOME/.config/bottom/bottom.toml$XDG_CONFIG_HOME/bottom/bottom.toml Windows C:\\Users\\<USER>\\AppData\\Roaming\\bottom\\bottom.toml
If the config file doesn't exist at the path, bottom will automatically try to create a new config file at the location with default values.
The configuration file also has JSON Schema support to make it easier to manage, if your IDE/editor supports it.
"},{"location":"configuration/config-file/cpu/","title":"CPU","text":""},{"location":"configuration/config-file/cpu/#default-cpu-graph-selection","title":"Default CPU Graph Selection","text":"
You can configure which CPU graph is shown by default when starting up bottom by setting cpu.default.
[cpu]\n# One of \"all\" (default), \"average\"/\"avg\"\ndefault = \"average\"\n
You can configure which columns are shown by the disk table widget by setting the columns setting:
[disk]\n# Pick which columns you want to use in any order.\ncolumns = [\"Disk\", \"Mount\", \"Used\", \"Free\", \"Total\", \"Used%\", \"R/s\", \"W/s\"]\n
You can customize the default sort order (by default, it sorts by disk name). For example, to sort by the read rate:
[disk]\ndefault_sort = \"R/s\"\n
You can use any valid column name here (e.g. \"Disk\", \"Mount\", etc.). Note that if you put a column name that is not actually used, the default sort will just be the first column shown.
You can filter out what entries to show by configuring [disk.name_filter] and [disk.mount_filter] to filter by name and mount point respectively. In particular, you can set a list of things to filter with by setting list, and configure how that list is processed with the other options.
For example, consider a disk widget showing these entries:
If we wanted to ignoring any entry with a name that matches /dev/sda:
[disk.name_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"/dev/sda\"]\n\n# Whether to use regex. Defaults to false.\nregex = true\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
This would give us:
We can also combine both the name filter and mount filter. For example:
This section is in progress, and is just copied from the old documentation.
You can configure flags by putting them in [flags] table. Example:
[flags]\nhide_avg_cpu = true\n
Most of the command line flags have config file equivalents to avoid having to type them out each time:
Field Type Functionality hide_avg_cpu Boolean Hides the average CPU usage. dot_marker Boolean Uses a dot marker for graphs. cpu_left_legend Boolean Puts the CPU chart legend to the left side. current_usage Boolean Sets process CPU% to be based on current CPU%. group_processes Boolean Groups processes with the same name by default. case_sensitive Boolean Enables case sensitivity by default. whole_word Boolean Enables whole-word matching by default. regex Boolean Enables regex by default. basic Boolean Hides graphs and uses a more basic look. use_old_network_legend Boolean DEPRECATED - uses the older network legend. battery Boolean Shows the battery widget. rate Unsigned Int (represents milliseconds) or String (represents human time) Sets a refresh rate in ms. default_time_value Unsigned Int (represents milliseconds) or String (represents human time) Default time value for graphs in ms. time_delta Unsigned Int (represents milliseconds) or String (represents human time) The amount in ms changed upon zooming. hide_time Boolean Hides the time scale. temperature_type String (one of [\"k\", \"f\", \"c\", \"kelvin\", \"fahrenheit\", \"celsius\"]) Sets the temperature unit type. default_widget_type String (one of [\"cpu\", \"proc\", \"net\", \"temp\", \"mem\", \"disk\"], same as layout options) Sets the default widget type, use --help for more info. default_widget_count Unsigned Int (represents which default_widget_type) Sets the n'th selected widget type as the default. disable_click Boolean Disables mouse clicks. enable_cache_memory Boolean Enable cache and buffer memory stats (not available on Windows). process_memory_as_value Boolean Defaults to showing process memory usage by value. tree Boolean Defaults to showing the process widget in tree mode. show_table_scroll_position Boolean Shows the scroll position tracker in table widgets. show_table_scroll_bar Boolean Shows a scroll bar on the right edge of table widgets. process_command Boolean Show processes as their commands by default. disable_advanced_kill Boolean Disable being able to send signals to processes on supported Unix-like systems. Only available on Linux, macOS, and FreeBSD. read_only Boolean Prevents performing any actions that affect the system (e.g. stopping processes). network_use_binary_prefix Boolean Displays the network widget with binary prefixes. network_use_bytes Boolean Displays the network widget using bytes. network_use_log Boolean Displays the network widget with a log scale. disable_gpu Boolean Disable NVIDIA and AMD GPU data collection. retention String (human readable time, such as \"10m\", \"1h\", etc.) How much data is stored at once in terms of time. unnormalized_cpu Boolean Show process CPU% without normalizing over the number of cores. expanded Boolean Expand the default widget upon starting the app. memory_legend String (one of [\"none\", \"top-left\", \"top\", \"top-right\", \"left\", \"right\", \"bottom-left\", \"bottom\", \"bottom-right\"]) Where to place the legend for the memory widget. network_legend String (one of [\"none\", \"top-left\", \"top\", \"top-right\", \"left\", \"right\", \"bottom-left\", \"bottom\", \"bottom-right\"]) Where to place the legend for the network widget. average_cpu_row Boolean Moves the average CPU usage entry to its own row when using basic mode. tree_collapse Boolean Collapse process tree by default. autohide_time Boolean Temporarily shows the time scale in graphs. table_gap String (one of [\"none\", \"space\", \"line\"]) Controls the gap between table headers and data rows. Defaults to \"space\". disable_keys Boolean Disables keyboard shortcuts, including the ones that stop bottom. no_write Boolean Disables writing to the config file. hide_k_threads Boolean Hide kernel threads by default. free_arc Boolean Subtract freeable ARC from memory usage."},{"location":"configuration/config-file/layout/","title":"Layout","text":"
Warning
This section is in progress, and is just copied from the old documentation.
bottom supports customizable layouts via the config file. Currently, layouts are controlled by using TOML objects and arrays.
This would give a layout that has two rows, with a 1:2 ratio. The first row has only the CPU widget. The second row is split into two columns with a 4:3 ratio. The first column contains the memory widget. The second column is split into two rows with a 1:1 ratio. The first is the temperature widget, the second is the disk widget.
This is what the layout would look like when run:
Each [[row]] represents a row in the layout. A row can have any number of child values. Each [[row.child]] represents either a column or a widget. A column can have any number of child values as well. Each [[row.child.child]] represents a widget. A widget is represented by having a type field set to a string.
The following type values are supported:
\"cpu\" CPU chart and legend \"mem\", \"memory\" Memory chart \"net\", \"network\" Network chart and legend \"proc\", \"process\", \"processes\" Process table and search \"temp\", \"temperature\" Temperature table \"temp_graph\", \"temperature_graph\" Temperature graph \"disk\" Disk table \"empty\" An empty space \"batt\", \"battery\" Battery statistics
Each component of the layout accepts a ratio value. If this is not set, it defaults to 1.
Furthermore, you can have duplicate widgets.
For an example, look at the default config, which contains the default layout.
If you want to change some of the default behaviour of the network widget, you can configure some things in the config file.
Field Type Functionality show_packets Boolean Displays packet rate and average packet size info."},{"location":"configuration/config-file/network/#filtering-entries","title":"Filtering Entries","text":"
You can filter out what entries to show by configuring [network.interface_filter] . In particular, you can set a list of things to filter with by setting list, and configure how that list is processed with the other options.
For example, here we are ignoring any entry with a name that matches /dev/sda<NUMBERS>, or specifically /dev/nvme0n1p2.
[network.interface_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"virbr0.*\"]\n\n# Whether to use regex. Defaults to false.\nregex = true\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
If you want to change some of the default behaviour of the processes widget, you can configure some things in the config file.
Field Type Functionality get_threads Boolean Gather process thread information."},{"location":"configuration/config-file/processes/#columns","title":"Columns","text":"
You can configure which columns are shown by the process widget by setting the columns setting:
[processes]\n# Pick which columns you want to use in any order.\ncolumns = [\"cpu%\", \"mem%\", \"pid\", \"name\", \"read\", \"write\", \"tread\", \"twrite\", \"state\", \"user\", \"time\", \"gmem%\", \"gpu%\"]\n
By default, the process widget starts sorted by CPU usage. You can change the column it sorts by at startup:
[processes]\ndefault_sort = \"mem\"\n
Any of the column names accepted by columns work here (e.g. \"cpu%\", \"mem\", \"pid\", \"name\", \"read\"). If the column you pick is not actually shown by the widget, the built-in default is used instead.
The same setting is also exposed as a CLI flag, which takes precedence over the config file:
As there are a few ways styles can be applied to bottom, the order of which styles are prioritized are, in order of highest precedence to lowest precedence:
Built-in themes set via command-line args (e.g. btm --theme gruvbox)
Custom themes set via config file
Built-in themes set via config file
If nothing is set, it will fall back to the default theme.
Note that anywhere \"colour\" is used, it can be substituted for \"color\":
# This is okay\n[styles.widgets.widget_title]\ncolour = \"black\"\nbg_colour = \"white\"\n\n[styles.cpu]\nall_entry_colour = \"green\"\n\n# This is also okay\n[styles.widgets.widget_title]\ncolor = \"black\"\nbg_color = \"white\"\n\n[styles.cpu]\nall_entry_color = \"green\"\n
You can configure the colours for components with strings that are either hex colours (e.g. \"#ffffff\"), RGB colours (e.g. \"255, 255, 255\"), or named colours. Named colours are one of the following strings:
Text can generally be styled using the following TOML table:
[field]\n# The foreground colour of text.\ncolour = \"black\"\n\n# The background colour of text.\nbg_colour = \"blue\"\n\n# Whether to make the text bold.\nbold = false\n\n# Inline table version\nfield = { colour = \"black\", bg_colour = \"blue\", bold = false }\n
All fields are optional; by default if bg_colour is not set then there will be no background colour.
If you just want to style text by setting the foreground colour, for brevity, then you can also just set the field to be the colour itself. For example:
Config field Details Examples all_entry_colour The colour of the \"All\" CPU label all_entry_colour = \"Red\"avg_entry_colour The colour of the average CPU label and graph line avg_entry_colour = \"255, 0, 255\"cpu_core_colours Colour of each CPU threads' label and graph line. Read in order. cpu_core_colours = [\"Red\", \"Blue\", \"Green\"]"},{"location":"configuration/config-file/styling/#temperature-graph","title":"Temperature Graph","text":"
These can be set under [styles.temp_graph]:
Config field Details Examples temp_graph_colour_styles Colour of each temperature sensor's graph line. Read in order. temp_graph_colour_styles = [\"Red\", \"Blue\", \"Green\"]"},{"location":"configuration/config-file/styling/#memory","title":"Memory","text":"
These can be set under [styles.memory]:
Config field Details Examples ram_colour The colour of the RAM label and graph line ram_colour = \"Red\"cache_colour The colour of the cache label and graph line. Does not do anything on Windows. cache_colour = \"#ffffff\"swap_colour The colour of the swap label and graph line swap_colour = \"255, 0, 255\"arc_colour The colour of the ARC label and graph line arc_colour = \"Blue\"gpu_colours Colour of each GPU's memory label and graph line. Read in order. gpu_colours = [\"Red\", \"Blue\", \"Green\"]"},{"location":"configuration/config-file/styling/#network","title":"Network","text":"
These can be set under [styles.network]:
Config field Details Examples rx_colour The colour of the RX (download) label and graph line rx_colour = \"Red\"tx_colour The colour of the TX (upload) label and graph line tx_colour = \"#ffffff\"rx_total_colour The colour of the total RX (download) label in basic mode rx_total_colour = \"0, 0, 0\"tx_total_colour The colour of the total TX (upload) label in basic mode tx_total_colour = \"#000\""},{"location":"configuration/config-file/styling/#battery","title":"Battery","text":"
These can be set under [styles.battery]:
Config field Details Examples high_battery_colour The colour of the battery widget bar when the battery is over 50% high_battery_colour = \"Red\"medium_battery_colour The colour of the battery widget bar when the battery between 10% to 50% medium_battery_colour = \"#ffffff\"low_battery_colour The colour of the battery widget bar when the battery is under 10% low_battery_colour = \"0, 0, 0\""},{"location":"configuration/config-file/styling/#tables","title":"Tables","text":"
These can be set under [styles.tables]:
Config field Details Examples headers Text styling for table headers headers = { colour = \"red\", bg_colour = \"black\", bold = true }"},{"location":"configuration/config-file/styling/#graphs","title":"Graphs","text":"
These can be set under [styles.graphs]:
Config field Details Examples graph_colour The general colour of the parts of the graph graph_colour = \"white\"legend_text Text styling for graph's legend text legend_text = { colour = \"black\", bg_colour = \"blue\", bold = true }"},{"location":"configuration/config-file/styling/#general-widget-settings","title":"General widget settings","text":"
These can be set under [styles.widgets]:
Config field Details Examples border_colour The colour of the widgets' borders border_colour = \"white\"selected_border_colour The colour of a widget's borders when the widget is selected selected_border_colour = \"white\"widget_title Text styling for a widget's title widget_title = { colour = \"black\", bg_colour = \"blue\", bold = true }bg_colour The background colour of the widgets. bg_colour = \"black\"text Text styling for text in general text = { colour = \"black\", bg_colour = \"blue\", bold = true }selected_text Text styling for text when representing something that is selected selected_text = { colour = \"black\", bg_colour = \"blue\", bold = true }disabled_text Text styling for text when representing something that is disabled disabled_text = { colour = \"black\", bg_colour = \"blue\", bold = true }thread_text Text styling for text when representing process threads. Only usable on Linux at the moment. thread_text = { colour = \"green\", bg_colour = \"blue\", bold = true }"},{"location":"configuration/config-file/temperature-graph/","title":"Temperature Graph","text":"
The temperature graph widget is configured under [temperature_graph].
The location of the legend can be set with legend_position. Valid values are none, top-left, top, top-right, left, right, bottom-left, bottom, and bottom-right. Defaults to top-right.
By default, the y-axis is bounded at 100\u00b0C (or the equivalent in the configured temperature_type) and grows automatically if a reading exceeds that. An explicit upper bound can be set with max_temp (uses the same unit as temperature_type). Sensor readings above this value will be drawn off the chart.
You can filter which sensors to plot by configuring [temperature_graph.sensor_filter]. This works the same way as the temperature table's filter.
For example, here we are ignoring any sensor that has \"cpu\" or \"wifi\" in its name:
[temperature_graph.sensor_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"cpu\", \"wifi\"]\n\n# Whether to use regex. Defaults to false.\nregex = false\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
You can filter out what entries to show by configuring [temperature.sensor_filter]. In particular you can set a list of things to filter with by setting list, and configure how that list is processed with the other options.
For example, here we are ignoring any sensor that has \"cpu\" or \"wifi\" in it.
[temperature.sensor_filter]\n# Whether to ignore any matches. Defaults to true.\nis_list_ignored = true\n\n# A list of filters to try and match.\nlist = [\"cpu\", \"wifi\"]\n\n# Whether to use regex. Defaults to false.\nregex = false\n\n# Whether to be case-sensitive. Defaults to false.\ncase_sensitive = false\n\n# Whether to require matching the whole word. Defaults to false.\nwhole_word = false\n
"},{"location":"contribution/documentation/","title":"Documentation","text":""},{"location":"contribution/documentation/#when-should-documentation-changes-be-done","title":"When should documentation changes be done?","text":"
Whenever a new feature is added, a bug is fixed, or a breaking change is made, it should be documented where appropriate (ex: README.md, changelog, etc.)
New methods of installation are always appreciated and should be documented
"},{"location":"contribution/documentation/#what-pages-need-documentation","title":"What pages need documentation?","text":"
There are a few areas where documentation changes are often needed:
The README.md
The help menu inside of the application (located here)
The extended documentation (what you're reading right now)
The CHANGELOG.md
"},{"location":"contribution/documentation/#how-should-i-addupdate-documentation","title":"How should I add/update documentation?","text":"
Fork the repository to make changes in.
Where you're adding documentation will probably affect what you need to do:
README.md or CHANGELOG.md
For changes to README.md and CHANGELOG.md, just follow the formatting provided and use any editor.
Generally, changes to CHANGELOG.md will be handled by a maintainer, and the contents of the file should follow the Keep a Changelog format, as well as link to the relevant PR or issues.
Help menu
For changes to the help menu, try to refer to the existing code within src/constants.rs on how the help menu is generated.
Extended documentation
For changes to the extended documentation, you'll probably want at least Python 3.11 (older and newer versions should be fine), MkDocs, Material for MkDocs, mdx_truly_sane_lists, and optionally Mike installed. These can help with validating your changes locally.
You can do so through pip or your system's package managers. If you use pip, you can use venv to cleanly install the documentation dependencies:
# Change directories to the documentation.\ncd docs/\n\n # Create venv, install the dependencies, and serve the page.\n./serve.sh\n
This will serve a local version of the docs that you can open on your browser. It will update as you make changes.
Once you have your documentation changes done, submit it as a pull request. For more information regarding that, refer to Issues, Pull Requests, and Discussions.
"},{"location":"contribution/issues-and-pull-requests/","title":"Issues, Pull Requests, and Discussions","text":""},{"location":"contribution/issues-and-pull-requests/#discussions","title":"Discussions","text":"
Discussions are open in the repo. As for the difference between discussions and issues:
Open an issue if what you have enough information to properly fill out any details needed for a report or request.
Open a discussion otherwise (e.g. asking a question).
"},{"location":"contribution/issues-and-pull-requests/#opening-an-issue","title":"Opening an issue","text":""},{"location":"contribution/issues-and-pull-requests/#bug-reports","title":"Bug reports","text":"
When filing a bug report, please use the bug report template and fill in as much as you can. It is incredibly difficult for a maintainer to fix a bug when it cannot be reproduced, and giving as much detail as possible generally helps to make it easier to reproduce the problem!
Please use the feature request template and fill it out. Remember to give details about what the feature is along with why you think this suggestion will be useful.
Also, please check whether an existing issue has covered your specific feature request!
Make any documentation changes if necessary - if you add a new feature, it'll probably need documentation changes. See here for tips on documentation.
Commit and create a pull request to merge into the main branch. Please fill out the pull request template and checklist.
Ask a maintainer to review your pull request.
Check if the CI workflow passes. These consist of clippy lints, rustfmt checks, and basic tests. If you are a first-time contributor, you may need to wait for a maintainer to let CI run.
If changes are suggested or any comments are made, they should probably be addressed.
Once it looks good, it'll be merged! Note that generally, PRs are squashed to maintain repo cleanliness, though feel free to ask otherwise if that isn't preferable.
Some other things related to making changes or pull requests:
Please review your code yourself before you create the PR and ask for a review.
I'm fine if you use AI to help with your change, but I expect you to still review the changes yourself.
If you are adding or changing any dependency, I expect a justification on why this is necessary.
Please ensure that any changes made are compatible with the license of bottom.
"},{"location":"contribution/packaging-and-distribution/","title":"Packaging and Distribution","text":"
Package maintainers are always welcome and appreciated! Here's some info on how one can help with package distribution and bottom.
The latest stable release can be found here, where you can find pre-built binaries in either a tar.gz or zip format. Binaries here also include automatically generated shell completion files for zsh, bash, fish, and Powershell, which you may want to also install during the packaging process.
You can also find a nightly build in the releases page, built every day at 00:00 UTC off of the main branch.
In both cases, we use GitHub Actions to create our release binaries. build_releases.yml contains the GitHub Action workflow for this.
If you want to manually build bottom rather than distributing a pre-built binary, you'll need the most recent version of stable Rust, which you can get with:
rustup update stable\n
You'll then want to build with:
cargo build --release --locked\n
"},{"location":"contribution/packaging-and-distribution/#manpage-and-completion-generation","title":"Manpage and completion generation","text":"
bottom uses a build.rs script to automatically generate a manpage and shell completions for the following shells:
Bash
Zsh
Fish
Powershell
Elvish
If you want to generate manpages and/or completion files, set the BTM_GENERATE env var to a non-empty value. For example, run something like this:
This will automatically generate completion and manpage files in target/tmp/bottom/. If you wish to regenerate the files, modify/delete either these files or set BTM_GENERATE to some other non-empty value to retrigger the build script.
You may override the default directories used to generate both completion and manpage files by specifying the COMPLETION_DIR and MANPAGE_DIR environment variables respectively.
For more information, you may want to look at either the build.rs file or the binary build CI workflow.
"},{"location":"contribution/packaging-and-distribution/#adding-an-installation-source","title":"Adding an installation source","text":"
Once you've finished your installation source, if you want to mention it in the main bottom repo, fork the repo and add the installation method and any details to the README.md file under the Installation section, as well as a corresponding table of contents entry. Once that's done, open a pull request - these will usually be approved of very quickly.
You can find more info on the contribution process here.
bottom manages its own binary builds for nightly and stable release purposes. The core build workflow is handled by build_releases.yml, called by a wrapper workflow for nightly and stable releases. Builds take place via GitHub Actions.
The main things built are:
Binaries for various platforms
MSI installer for Windows
.deb package for Debian and its derivatives
This documentation gives a high-level overview of the build process for each part. For the most up-to-date and detailed reference, definitely refer back to the build_releases.yml file.
bottom currently has two main deploy processes to worry about:
Nightly: a daily (00:00 UTC) GitHub action to build binary/installer files, and upload them to the nightly release (example). It can also be triggered manually as either a proper nightly release or a mock release.
Stable: a stable deployment, triggered manually or upon creation of a valid tag. This is a GitHub action that builds binary/installer files and uploads them to a new GitHub release.
Furthermore, this workflow does not handle the following deployments, which must be manually handled:
This is, for the most part, automatic, though it can also be used as a way of testing build workflow changes and seeing if binaries can be successfully built at all against all the targets we want to build for.
If one does not want to actually update the nightly release, and just want to test the general builds and workflow, one can run the workflow manually on a branch of choice with \"mock\" set as the parameter. Changing it to anything else will trigger a non-mock run.
This can be manually triggered, though the general use-case is setting a tag of the form x.y.z (after checking everything is good, of course). For example:
git tag 0.6.9 && git push origin 0.6.9\n
This will automatically trigger the deployment workflow, and create a draft release with the files uploaded. One still needs to fill in the details and release it.
Furthermore, there are some deployments that are handled by maintainers of bottom that this workflow does not automatically finish. These must be manually handled.
Validate everything builds properly and works (you should have done this before releasing though). If good, then deploying on crates.io is as simple as:
Upon releasing on GitHub, choco-bottom will automatically be updated with a new PR with the correct deployment files for Chocolatey. Check the PR, merge it if it is correct, then pull locally and deploy following the instructions in the README. Make sure to test installation and running at least once before deploying!
If done correctly, there should be a new build on Chocolatey, which will take some time to validate.
bottom officially supports the following operating systems and corresponding architectures:
macOS (x86_64, aarch64)
Linux (x86_64, i686, aarch64)
Windows (x86_64, i686)
These platforms are tested to work (with caveats, see below) and issues on these platforms will be fixed if possible.
Furthermore, binaries are expected to be built and tested using the most recent version of stable Rust - if you are manually building bottom from the repo/source, then please try that as well.
If you encounter any issues, see the troubleshooting page or open an issue/discussion on GitHub.
Systems and architectures that aren't officially supported may still work, but there are no guarantees on how much will work. For example, it might only compile, or it might run with bugs/broken features. Furthermore, while it will depend on the problem at the end of the day, issues on unsupported platforms are likely to go unfixed.
Unofficially supported platforms known to compile/work:
FreeBSD
Linux on ARMv7 and ARMv6 (tested to compile in CI)
Linux on PowerPC 64 LE (tested to compile in CI)
Linux on an RISC-V (tested to compile in CI, tested to run on an Allwinner D1 Nezha)
If you encounter any issues, see the troubleshooting page or open an issue/discussion on GitHub - though as mentioned, unsupported platforms may go unfixed.
The release binaries in the releases page are packaged with shell auto-completion files for Bash, Zsh, fish, Powershell, Elvish, Fig, and Nushell. To install them:
For Bash, move btm.bash to $XDG_CONFIG_HOME/bash_completion or /etc/bash_completion.d/.
For Zsh, move _btm to one of your $fpath directories.
For fish, move btm.fish to $HOME/.config/fish/completions/.
For PowerShell, add _btm.ps1 to your PowerShell profile.
For Elvish, the completion file is btm.elv.
For Fig, the completion file is btm.ts.
For Nushell, source btm.nu.
The individual auto-completion files are also included in the stable/nightly releases as completion.tar.gz if needed.
In this mode, widgets that use tables (temperatures, processes, disks, and batteries) are only shown one at a time. One can switch between these widgets either by clicking the arrow buttons or by using the general widget selection shortcuts (for example, Ctrl+Left or H) to switch which widget is shown.
Also note that in this mode, widget expansion and custom layouts are disabled.
Basic mode follows the same key bindings as normal, barring widget expansion being disabled, and that the % key while selecting the memory widget toggles between total usage and percentage.
By default, bottom is somewhat like a dashboard - a bunch of different widgets, all showing different things, and they all cram together to fit into one terminal.
If you instead just want to see one widget - maybe you want to look at a graph in more detail, for example - you can \"expand\" the currently selected widget using the e key, which will hide all other widgets and make that widget take up all available terminal space.
You can leave this state by either pressing e again or pressing Esc.
To allow for widget-specific keybindings and expansion, there is the idea of widget selection in bottom, where you can focus on a specific widget to work with it. This can be done with the mouse (just click on the widget of interest) or keyboard (ex: Ctrl+Direction, see Key bindings for alternatives).
These are global or common keyboard shortcuts for the application, which you can see in-app through the ? shortcut. Note that key bindings are generally case-sensitive.
Binding Action q , Ctrl+c Quit Esc Close dialog windows, search, widgets, or exit expanded mode Ctrl+r Reset display and any collected data f Freeze/unfreeze updating with new data ? Open help menu e Toggle expanding the currently selected widget Ctrl+Up Shift+Up K W Select the widget above Ctrl+Down Shift+Down J S Select the widget below Ctrl+Left Shift+Left H A Select the widget on the left Ctrl+Right Shift+Right L D Select the widget on the right Up , k Move up within a widget Down , j Move down within a widget Left h Alt+h Move left within a widget Right l Alt+l Move right within a widget g+g , Home Jump to the first entry G , End Jump to the last entry Page Up , Page Down Scroll up/down a table by a page Ctrl+u Scroll up a table by half a page Ctrl+d Scroll down a table by half a page"},{"location":"usage/general-usage/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects the widget"},{"location":"usage/widgets/battery/","title":"Battery Widget","text":"
Warning
The battery features are unavailable if the binary is compiled with the battery feature disabled or if there are no batteries on the system!
The battery widget provides information about batteries on the system.
The battery widget can be enabled through either the --battery flag, the battery = true option in a config file, or specifying the widget in a custom layout.
Note that key bindings are generally case-sensitive.
Binding Action Left h Alt+h Moves to the battery entry to the left of the current one Right l Alt+l Moves to the battery entry to the right of the current one"},{"location":"usage/widgets/battery/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects a battery entry"},{"location":"usage/widgets/cpu/","title":"CPU Widget","text":"
The CPU widget displays a visual representation of CPU usage over a time range.
The CPU widget is composed of two parts: the graph and the legend:
The graph displays the usage data for the currently selected entry as a percentage
The legend displays all available entries that can be displayed on the graph along with their last recorded use percentage (except for the \"All\" option)
Users can scroll through the legend using either the keyboard or mouse to select which entry to display on the graph. The \"All\" option shows every entry at the same time, though this may get a bit hard to follow if you have a large number of cores/threads.
One can also adjust the displayed time range through either the keyboard or mouse, with a range of 30s to 600s.
Note that key bindings are generally case-sensitive.
"},{"location":"usage/widgets/cpu/#graph","title":"Graph","text":"Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/cpu/#legend","title":"Legend","text":"Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the legend G , End Jump to the last entry in the legend"},{"location":"usage/widgets/cpu/#mouse-bindings","title":"Mouse bindings","text":""},{"location":"usage/widgets/cpu/#graph_1","title":"Graph","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/cpu/#legend_1","title":"Legend","text":"Binding Action Scroll Scroll through options to display in the graph Left Button Selects a CPU thread/average to show in the graph"},{"location":"usage/widgets/disk/","title":"Disk Widget","text":"
The disk widget provides a table of useful disk and partition information, like I/O per second and total usage.
Note that key bindings are generally case-sensitive.
Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table d Sort by disk, press again to reverse sorting order m Sort by mount, press again to reverse sorting order u Sort by amount used, press again to reverse sorting order n Sort by amount free, press again to reverse sorting order t Sort by total space available, press again to reverse sorting order p Sort by percentage used, press again to reverse sorting order r Sort by read rate, press again to reverse sorting order w Sort by write rate, press again to reverse sorting order"},{"location":"usage/widgets/disk/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects an entry in the table"},{"location":"usage/widgets/memory/","title":"Memory Widget","text":"
The memory widget provides a visual representation of RAM and swap usage over time.
The legend displays the current usage in terms of percentage and actual usage in binary units (KiB, MiB, GiB, etc.). If the total RAM or swap available is 0, then it is automatically hidden from the legend and graph.
One can also adjust the displayed time range through either the keyboard or mouse, with a range of 30s to 600s.
This widget can also be configured to display Nvidia and AMD GPU memory usage (--disable_gpu on Linux/Windows to disable) or cache memory usage (--enable_cache_memory).
Note that key bindings are generally case-sensitive.
Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/memory/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/memory/#how-are-memory-values-determined","title":"How are memory values determined?","text":""},{"location":"usage/widgets/memory/#linux","title":"Linux","text":"
Memory usage is calculated using the following formula based on values from /proc/meminfo (based on htop's implementation):
In Windows, we calculate swap by querying Get-Counter \"\\Paging File(*)\\% Usage\". This is also what some libraries like psutil use. However, note there are also a few other valid methods of representing \"swap\" in Windows (e.g. using GetPerformanceInfo), which all slightly don't match.
The network widget provides a visual representation of network input and output per second, as well as noting the total amount received and transmitted.
The legend displays the current reads and writes per second in bits, as well as the total amount read/written.
The y-axis automatically scales based on shown read/write values, and by default, is a linear scale based on base-10 units (e.x. kilobit, gigabit, etc.). Through configuration, the read/write per second unit can be changed to bytes, while the y-axis can be changed to a log scale and/or use base-2 units (e.x. kibibit, gibibit, etc.).
One can also adjust the displayed time range through either the keyboard or mouse, with a range of 30s to 600s.
Note that key bindings are generally case-sensitive.
Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/network/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/process/","title":"Process Widget","text":"
The process widget displays a table containing information regarding a running process, along with sorting, searching, and process control features.
The table can be sorted by clicking on the table headers, which will either sort the table by that column, or if already sorting by that column, reverse the sorting order.
Alternatively, one can sort using the sort menu sub-widget, which is brought up using s or F6, and can be controlled by arrow keys or the mouse.
Pressing Tab in the table will group entries with the same name together. The PID column will be replaced with the number of entries in each group, and usage is added together when displayed.
Info
Note that the process state and user columns are disabled in this mode.
Info
Note that if tree mode is also active, processes cannot be grouped together due to the behaviour of the two modes somewhat clashing. This also reflects with default modes like group_processes.
Pressing d+d or F9 will allow you to terminate the currently selected process/process group. On Unix-like operating systems, you are also able to control which specific signals to send (e.g. SIGKILL, SIGTERM).
The process termination menu on Linux
If you're on Windows, or if the disable_advanced_kill flag is set in the options or command-line (only available on Linux, macOS, and FreeBSD), then a simpler termination screen with just yes or no options will be shown.
The process termination menu on Windows"},{"location":"usage/widgets/process/#tree-mode","title":"Tree mode","text":"
Pressing t or F5 in the table toggles tree mode in the process widget, displaying processes in regard to their parent-child process relationships.
A process in tree mode can also be \"collapsed\", hiding its children and any descendants, using the either the -, +, or Left keys, or clicking on an entry. It can be expanded by using the -, +, or Right keys, or by clicking on the entry again. The Space key can also be used to toggle between the collapsed and expanded states.
Info
Note that if tree mode is active, processes cannot be grouped together due to the behaviour of the two modes somewhat clashing. This also reflects with default modes like group_processes.
Note all keywords are case-insensitive. To search for a process/command that collides with a keyword, surround the term with quotes (e.x. \"cpu\").
Keywords Example Description btm Matches by process or command name; supports regex pidpid=1044 Matches by PID; supports regex cpucpu%cpu > 0.5 Matches the CPU column; supports comparison operators membmemb > 1000 b Matches the memory column in terms of bytes; supports comparison operators memmem%mem < 0.5 Matches the memory column in terms of percent; supports comparison operators readr/srpsread = 1 mb Matches the read/s column in terms of bytes; supports comparison operators writew/swpswrite >= 1 kb Matches the write/s column in terms of bytes; supports comparison operators treadt.readtread <= 1024 gb Matches the total read column in terms of bytes; supports comparison operators twritet.writetwrite > 1024 tb Matches the total write column in terms of bytes; supports comparison operators useruser=root Matches by user; supports regex statestate=running Matches by state; supports regex ()(<COND 1> AND <COND 2>) OR <COND 3> Group together a condition gmemgmem > 1000 b Matches the gpu memory column in terms of bytes; supports comparison operators gmem%gmem% < 0.5 Matches the gpu memory column in terms of percent; supports comparison operators gpu%gpu% > 0 Matches the gpu usage column in terms of percent; supports comparison operators"},{"location":"usage/widgets/process/#comparison-operators","title":"Comparison operators","text":"Keywords Description = Checks if the values are equal != Checks if the values are not equal > Checks if the left value is strictly greater than the right < Checks if the left value is strictly less than the right >= Checks if the left value is greater than or equal to the right <= Checks if the left value is less than or equal to the right"},{"location":"usage/widgets/process/#logical-operators","title":"Logical operators","text":"
Note all operators are case-insensitive, and the and operator takes precedence over the or operator.
Keywords Usage Description and&&<Space><COND 1> and <COND 2><COND 1> && <COND 2><COND 1> <COND 2> Requires both conditions to be true to match or||<COND 1> or <COND 2><COND 1> || <COND 2> Requires at least one condition to be true to match !!<COND>!(<COND 1> or <COND 2>) Inverts the following condition or group
! is reserved as an operator, so it cannot appear bare as a value. To match a literal ! in a name or string field, quote it \u2014 e.g. \"foo!\" or user = \"!\". A bare ! with nothing parseable after it (such as user = ! or ! on its own) is rejected.
Note that key bindings are generally case-sensitive.
"},{"location":"usage/widgets/process/#process-table","title":"Process table","text":"Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table d+d , F9 Send a kill signal to the selected process c Sort by CPU usage, press again to reverse sorting order m Sort by memory usage, press again to reverse sorting order p Sort by PID name, press again to reverse sorting order n Sort by process name, press again to reverse sorting order Tab Toggle grouping processes with the same name P Toggle between showing the full command or just the process name Ctrl+f , / Toggle showing the search sub-widget s , F6, Del (Fn+Del on macOS) Toggle showing the sort sub-widget I Invert the current sort % Toggle between values and percentages for memory usage t , F5 Toggle tree mode M Sort by gpu memory usage, press again to reverse sorting order C Sort by gpu usage, press again to reverse sorting order z Toggle the hiding of kernel threads"},{"location":"usage/widgets/process/#sort-sub-widget","title":"Sort sub-widget","text":"Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table Esc Close the sort sub-widget Enter Sorts the corresponding process table"},{"location":"usage/widgets/process/#search-sub-widget","title":"Search sub-widget","text":"Binding Action Left h Alt+h Moves the cursor left Right l Alt+l Moves the cursor right Esc Close the search widget (retains the filter) Ctrl+a Skip to the start of the search query Ctrl+e Skip to the end of the search query Ctrl+u Clear the current search query Ctrl+w Delete a word behind the cursor Ctrl+h Delete the character behind the cursor Backspace Delete the character behind the cursor Del (Fn+Del on macOS) Delete the character at the cursor Alt+c , F1 Toggle matching case Alt+w , F2 Toggle matching the entire word Alt+r , F3 Toggle using regex"},{"location":"usage/widgets/process/#mouse-bindings","title":"Mouse bindings","text":""},{"location":"usage/widgets/process/#process-table_1","title":"Process table","text":"Binding Action Scroll Selects a CPU thread/average to show in the graph Left Button Table header: Sorts/reverse sorts the table by the column Table entry: Selects an entry in the table, if in tree mode, collapses/expands the entry's children"},{"location":"usage/widgets/process/#sort-sub-widget_1","title":"Sort sub-widget","text":"Binding Action Left Button Selects an entry in the table"},{"location":"usage/widgets/temperature-graph/","title":"Temperature Graph Widget","text":"
The temperature graph widget provides temperature readings over time.
Each detected sensor is drawn as its own line. The y-axis is in the configured temperature unit (Celsius by default; see the temperature_type flag).
By default the y-axis is bounded at 100\u00b0C (or the equivalent in the configured unit) and grows automatically. An upper bound can also be set explicitly via the config file.
The displayed time range can be adjusted through either the keyboard or mouse.
Note that key bindings are generally case-sensitive.
Binding Action + Zoom in on chart (decrease time range) - Zoom out on chart (increase time range) = Reset zoom"},{"location":"usage/widgets/temperature-graph/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Scroll Scrolling up or down zooms in or out of the graph respectively"},{"location":"usage/widgets/temperature-table/","title":"Temperature Widget","text":"
The temperature widget provides a table of temperature sensors and their current temperature.
Note that key bindings are generally case-sensitive.
Binding Action Up , k Move up within a widget Down , j Move down within a widget g+g , Home Jump to the first entry in the table G , End Jump to the last entry in the table t Sort by temperature, press again to reverse sorting order s Sort by sensor name, press again to reverse sorting order"},{"location":"usage/widgets/temperature-table/#mouse-bindings","title":"Mouse bindings","text":"Binding Action Left Button Selects an entry in the table"}]}
\ No newline at end of file
diff --git a/nightly/troubleshooting/index.html b/nightly/troubleshooting/index.html
index f599d12b..019ec653 100644
--- a/nightly/troubleshooting/index.html
+++ b/nightly/troubleshooting/index.html
@@ -2186,27 +2186,24 @@ Here are some possible solutions:
Here, add a new String value, and set the Name to a bunch of 0's (e.g. 000 - make sure the name isn't already used), then set the Data to the font name (e.g. Iosevka).
+
+
+ The last entry is the new entry for Iosevka
+
+
+
+
Then, open the Command Prompt/PowerShell, and right-click on the top bar, and open "Properties":
+
+
+
+
+
+
From here, go to "Font", and set the font to your new font (so in this example, Iosevka):
+
+
+
-
-
- The last entry is the new entry for Iosevka
-
-
-
-
Then, open the Command Prompt/PowerShell, and right-click on the top bar, and open "Properties":
-
-
-
-
-
-
-
From here, go to "Font", and set the font to your new font (so in this example, Iosevka):
@@ -2234,14 +2231,15 @@ on how to run htop without sudo for bottom. However, please und
It may be handy to refer to the automatically generated config files or the
sample configuration files. The config files also
follow the TOML format.
-
Also make sure your config options are under the right table - for example, to set your temperature type, you must
+
Also make sure your config option settings are in the right location - for example, to set your temperature type, you must
set it under the [flags] table:
[flags]temperature_type="f"
-
Meanwhile, if you want to set a custom color scheme, it would be under the [styles] table:
+
Meanwhile, if you want to set a custom colour or styling scheme, it would be under the [styles] table - for example:
To help validate your configuration files, there is JSON Schema support if your IDE/editor
supports it.
@@ -2306,7 +2304,7 @@ question about it, and I (or others) can try to help.
- December 26, 2025
+ May 8, 2026
diff --git a/nightly/usage/widgets/process/index.html b/nightly/usage/widgets/process/index.html
index 96dddffe..356bd775 100644
--- a/nightly/usage/widgets/process/index.html
+++ b/nightly/usage/widgets/process/index.html
@@ -2741,7 +2741,7 @@ somewhat clashing. This also reflects with default modes like group_proces
- April 21, 2026
+ May 8, 2026
+ 
+ 
+