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bottom

Build Status crates.io link

A cross-platform graphical process/system monitor with a customizable interface and a multitude of features. Supports Linux, macOS, and Windows. Inspired by both gtop and gotop.

Quick demo recording showing off searching, maximizing, and process killing. Terminal: Kitty Terminal, Font: IBM Plex Mono, OS: Arch Linux. Theme based on gruvbox (see sample config).

Features

Features of bottom include:

  • CPU widget to show a visual representation of per-core (and optionally average) usage.

  • Memory widget to show a visual representation of both RAM and SWAP usage.

  • Networks widget to show a log-based visual representation of network usage.

  • Sortable and searchable process widget. Searching supports regex, and you can search by PID and process name.

  • Disks widget to display usage and I/O per second.

  • Temperature widget to monitor detected sensors in your system.

  • Flags to customize the display.

  • Config file support for custom colours and default options.

  • Maximizing of widgets of interest to take up the entire window.

More details about each widget and compatibility can be found here.

Config files

For information about config files, see this document for more details, and this config for an example.

Installation

In all cases you can install the in-development version by cloning from this repo and using cargo build --release. This is built and tested with Rust Stable (1.41 as of writing).

In addition to the below methods, you can manually build from the Releases page by downloading and building.

I officially support and test 64-bit versions of Tier 1 Rust targets. I will try to build and release 32-bit versions for Linux and Windows, but as of now, I will not be testing 32-bit for validity beyond building.

Cargo

cargo install bottom

Linux

Installation methods on a per-distro basis:

Arch Linux

You can get the release versions from the AUR by installing bottom or bottom-bin. For example, using yay:

yay bottom
#Or
yay bottom-bin

Debian (and anything based on it, like Ubuntu)

A .deb file is provided on each release:

curl -LO https://github.com/ClementTsang/bottom/releases/download/0.2.2/bottom_0.2.2_amd64.deb
sudo dpkg -i bottom_0.2.2_amd64.deb

Windows

You can get release versions via Chocolatey:

choco install bottom --version=0.2.1

macOS

You can get release versions using Homebrew:

$ brew tap clementtsang/bottom
$ brew install bottom
# Or
$ brew install clementtsang/bottom/bottom

Usage

Run using btm.

Command line options

  • -h, --help shows the help screen and exits.

  • -a, --avg_cpu enables also showing the average CPU usage in addition to per-core CPU usage.

  • -m, --dot-marker uses a dot marker instead of the default braille marker.

  • Temperature units (you can only use one at a time):

    • -c, --celsius displays the temperature type in Celsius. This is the default.

    • -f, --fahrenheit displays the temperature type in Fahrenheit.

    • -k, --kelvin displays the temperature type in Kelvin.

  • -v, --version displays the version number and exits.

  • -r <RATE>, --rate <RATE> will set the refresh rate in milliseconds. Lowest it can go is 250ms, the highest it can go is 2128 - 1. Defaults to 1000ms, and lower values may take more resources due to more frequent polling of data, and may be less accurate in some circumstances.

  • -l, --left_legend will move external table legends to the left side rather than the right side. Right side is default.

  • -u, --current_usage will make a process' CPU usage be based on the current total CPU usage, rather than assuming 100% CPU usage.

  • -g, --group will group together processes with the same name by default (equivalent to pressing Tab).

  • -S, --case_sensitive will default to matching case.

  • -W, --whole will default to searching for the world word.

  • -R, --regex will default to using regex.

  • --cpu_default, --memory_default, --disk_default, --temperature_default, --network_default, --process_default will select the corresponding widget on startup. By default the process widget is selected.

  • -s, --show_disabled_data will show data entries in the graph legends even if the lines for that entry are disabled.

  • -C, --config takes in a file path leading to a TOML file. If doesn't exist, creates one.

Keybindings

General

  • q, Ctrl-c to quit. Note if you are currently in the search widget, q will not work so you can still type.

  • Esc to close a dialog window, widget, or exit maximized mode.

  • Ctrl-r to reset the screen and reset all collected data.

  • f to freeze the screen from updating with new data. Press f again to unfreeze. Note that monitoring will still continue in the background.

  • Ctrl/Shift-arrow or H/J/K/L to navigate between widgets. Note that on macOS, some keybindings may collide with existing ones; H/J/K/L should work however.

  • Up or k and Down or j scrolls through the list if the widget is a table (Temperature, Disks, Processes).

  • ? to get a help screen explaining the controls. Note all controls except Esc to close the dialog will be disabled while this is open.

  • gg or Home to jump to the first entry of the current table.

  • G (Shift-g) or End to jump to the last entry of the current table.

  • Enter on a widget to maximize the widget.

CPU

  • / to allow for enabling/disabling showing certain cores with Space.

Processes

  • dd to kill the selected process

  • c to sort by CPU usage. Sorts in descending order by default. Press again to reverse sorting order.

  • m to sort by memory usage. Sorts in descending order by default. Press again to reverse sorting order.

  • p to sort by PID. Sorts in ascending order by default. Press again to reverse sorting order.

  • n to sort by process name. Sorts in ascending order by default. Press again to reverse sorting order.

  • Tab to group together processes with the same name. Disables PID sorting. dd will now kill all processes covered by that name.

  • Ctrl-f or / to open the search widget.

Search widget

  • Tab to switch between searching for PID and name respectively.

  • Esc to close.

  • Ctrl-a and Ctrl-e to jump to the start and end of the search bar respectively.

  • Ctrl-u to clear the current search query.

  • Backspace to delete one character behind the current cursor position.

  • Delete to delete one character at the current cursor position.

  • Left and Right arrow keys to move the cursor within the search bar.

  • Alt-c/F1 to toggle ignoring case.

  • Alt-w/F2 to toggle matching the entire word.

  • Alt-r/F3 to toggle using regex.

Note that q is disabled while in the search widget.

Mouse actions

  • Scrolling with the mouse will scroll through the currently selected list if the widget is a scrollable table.

Contribution

Contribution is welcome! Just submit a PR. Note that I develop and test on stable Rust.

If you spot any issue with nobody assigned to it, or it seems like no work has started on it, feel free to try and do it!

Thanks, kudos, and all the like