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.
Theme based on gruvbox (--color gruvbox). Font is IBM Plex Mono, terminal is Kitty.
Note: If you are reading this on the master branch, then it may refer to in-development or un-released features/changes. Please refer to release branch or crates.io for the most up-to-date release documentation.
Note that bottom is:
x86_64)x86_64, i686, aarch64)x86_64, i686)Operating systems, versions of Rust, or platforms that are outside of this list are not currently officially supported - even if it is built, tested, or works - and I may not be able to fix bugs for these!
The current compatibility of widgets with operating systems from personal testing:
| OS | CPU | Memory | Disks | Temperature | Processes/Search | Networks | Battery |
| ------- | --- | ------ | ----- | ------------------------------------ | ------------------------------------------ | -------- | -------------------------------------------- |
| Linux | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Windows | ✓ | ✓ | ✓ | ? (seems to require elevated access) | ✓ | ✓ | ✓ (seems to have issues with dual batteries) |
| macOS | ✓ | ✓ | ✓ | ✓ | ✓ (requires sudo btm to show everything) | ✓ | ✓ |
M1-based macOS devices may have issues with temperature sensors not returning anything.
For now, WSL has an issue reporting total memory usage.
WSL and WSL2 (as far as I know) cannot correctly report temperature sensors.
WSL2 will not match Windows' own Task Manager, this appears to be due to how WSL2 works.
There are a few ways to go about doing this manually. If you do so, please build using the current stable release of Rust. For example:
```bash
rustup update stable
cargo install --git https://github.com/ClementTsang/bottom
git clone https://github.com/ClementTsang/bottom cd bottom cargo install --path .
curl -LO https://github.com/ClementTsang/bottom/archive/0.6.1.tar.gz tar -xzvf 0.6.1.tar.gz cargo install --path . ```
Or, you can just download the binary from the latest release.
You can install pre-release nightly versions here. Builds are generated every day at 00:00 UTC, based on the most recent commit on the master branch.
```bash
rustup update stable
cargo install bottom
cargo install bottom --locked ```
Normal package found here, binary package found here:
```bash yay -S bottom
yay -S bottom-bin ```
A .deb file is provided on each release:
bash
curl -LO https://github.com/ClementTsang/bottom/releases/download/0.6.1/bottom_0.6.1_amd64.deb
sudo dpkg -i bottom_0.6.1_amd64.deb
Available in COPR:
bash
sudo dnf copr enable atim/bottom -y
sudo dnf install bottom
Available in dm9pZCAq overlay
bash
sudo eselect repository enable dm9pZCAq
sudo emerge --sync dm9pZCAq
sudo emerge sys-process/bottom::dm9pZCAq
bash
nix-env -i bottom
sudo eopkg it bottom
```bash brew tap clementtsang/bottom brew install bottom
brew install clementtsang/bottom/bottom ```
bash
scoop install bottom
Choco package located here. Since validation of the package takes time, it may take a while to become available after a release.
```bash choco install bottom
choco install bottom --version=0.6.1 ```
You can find the packages here. Since validation of the package takes time, it may take a while to become available after a release.
bash
winget install bottom
You can also manually do the same thing by going to the latest release
and installing via the .msi file.
You can uninstall via Control Panel or Options in Windows.
Shell completions are included in binary releases, and are generated in the same directory as the binary if bottom is manually built.
btm.bash to $XDG_CONFIG_HOME/bash_completion or /etc/bash_completion.d/.btm.fish to $HOME/.config/fish/completions/._btm to one of your $fpath directories.. _btm.ps1 to your PowerShell
profile.Some install scripts (i.e. AUR) will automatically do this for you.
Run using btm.
Use btm --help for more information.
--autohide_time Temporarily shows the time scale in graphs.
-b, --basic Hides graphs and uses a more basic look.
--battery Shows the battery widget.
-S, --case_sensitive Enables case sensitivity by default.
-c, --celsius Sets the temperature type to Celsius.
--color <COLOR SCHEME> Use a color scheme, use --help for supported values.
-C, --config <CONFIG PATH> Sets the location of the config file.
-u, --current_usage Sets process CPU% to be based on current CPU%.
-t, --default_time_value <MS> Default time value for graphs in ms.
--default_widget_count <INT> Sets the n'th selected widget type as the default.
--default_widget_type <WIDGET TYPE> Sets the default widget type, use --help for more info.
--disable_advanced_kill Hides advanced options to stop a process on Unix-like systems.
--disable_click Disables mouse clicks.
-m, --dot_marker Uses a dot marker for graphs.
-f, --fahrenheit Sets the temperature type to Fahrenheit.
-g, --group Groups processes with the same name by default.
-h, --help Prints help information. Use --help for more info.
-a, --hide_avg_cpu Hides the average CPU usage.
--hide_table_gap Hides the spacing between table headers and entries.
--hide_time Completely hides the time scaling.
-k, --kelvin Sets the temperature type to Kelvin.
-l, --left_legend Puts the CPU chart legend to the left side.
--mem_as_value Defaults to showing process memory usage by value.
--network_use_binary_prefix Displays the network widget with binary prefixes.
--network_use_bytes Displays the network widget using bytes.
--network_use_log Displays the network widget with a log scale.
--process_command Show processes as their commands by default.
-r, --rate <MS> Sets a refresh rate in ms.
-R, --regex Enables regex by default.
--show_table_scroll_position Shows the scroll position tracker in table widgets.
-d, --time_delta <MS> The amount in ms changed upon zooming.
-T, --tree Defaults to showing the process widget in tree mode.
--use_old_network_legend DEPRECATED - uses the older network legend.
-V, --version Prints version information.
-W, --whole_word Enables whole-word matching by default.
| | |
| ------------------------------------------- | ------------------------------------------------------------ |
| 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 |
| Ctrl-LeftShift-LeftHA | Move widget selection left |
| Ctrl-RightShift-RightLD | Move widget selection right |
| Ctrl-UpShift-UpKW | Move widget selection up |
| Ctrl-DownShift-DownJS | Move widget selection down |
| Left, h | Move left within widget |
| Down, j | Move down within widget |
| Up,k | Move up within widget |
| Right, l | Move right within widget |
| ? | Open help menu |
| gg, Home | Jump to the first entry |
| Shift-g, End | Jump to the last entry |
| e | Toggle expanding the currently selected widget |
| + | Zoom in on chart (decrease time range) |
| - | Zoom out on chart (increase time range) |
| = | Reset zoom |
| | |
| ------------- | ---------------------------------------------------------------- |
| dd | Kill 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 | Group/un-group processes with the same name |
| Ctrl-f, / | Open process search widget |
| P | Toggle between showing the full command or just the process name |
| s, F6 | Open process sort widget |
| I | Invert current sort |
| % | Toggle between values and percentages for memory usage |
| t, F5 | Toggle tree mode |
| | |
| ------------- | -------------------------------------------- |
| Tab | Toggle between searching by PID or name |
| 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 |
| Delete | 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 |
| Left | Move cursor left |
| Right | Move cursor right |
| | |
| -------------- | ------------------------------- |
| Down, j | Scroll down in list |
| Up, k | Scroll up in list |
| Mouse scroll | Scroll through sort widget |
| Esc | Close the sort widget |
| Enter | Sort by current selected column |
| | |
| -------------- | -------------------------- |
| Left, Alt-h | Go to the next battery |
| Right, Alt-l | Go to the previous battery |
| | |
| --- | ------------------------------------------------------ |
| % | Toggle between values and percentages for memory usage |
"or" or "(sd-pam)" would be a valid search:
| Keywords | Example | Description |
| ------------------- | ------------------ | ------------------------------------------------------------------------------- |
| | btm | Matches by process or command name; supports regex |
| pid | pid=1044 | Matches by PID; supports regex |
| cpu, cpu% | cpu > 0.5 | Matches the CPU column; supports comparison operators |
| memb | memb > 1000 b | Matches the memory column in terms of bytes; supports comparison operators |
| mem, mem% | mem < 0.5 | Matches the memory column in terms of percent; supports comparison operators |
| read, r/s | read = 1 mb | Matches the read/s column in terms of bytes; supports comparison operators |
| write, w/s | write >= 1 kb | Matches the write/s column in terms of bytes; supports comparison operators |
| tread, t.read | tread <= 1024 gb | Matches he total read column in terms of bytes; supports comparison operators |
| twrite, t.write | twrite > 1024 tb | Matches the total write column in terms of bytes; supports comparison operators |
| user | user=root | Matches by user; supports regex |
| state | state=running | Matches by state; supports regex |
| Keywords | Description |
| -------- | -------------------------------------------------------------- |
| = | Checks if the values are 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 |
Note that the and operator takes precedence over the or operator.
| Keywords | Usage | Description |
| ------------------ | -------------------------------------------- | --------------------------------------------------- |
| and, &&, <Space> | <CONDITION 1> and/&&/<Space> <CONDITION 2> | Requires both conditions to be true to match |
| or, \|\| | <CONDITION 1> or/\|\| <CONDITION 2> | Requires at least one condition to be true to match |
| Keywords | Description |
| -------- | ----------- |
| B | Bytes |
| KB | Kilobytes |
| MB | Megabytes |
| GB | Gigabytes |
| TB | Terabytes |
| KiB | Kibibytes |
| MiB | Mebibytes |
| GiB | Gibibytes |
| TiB | Tebibytes |
| Keywords | Usage | Description |
| -------- | ---------------------------------------------------- | -------------------------- |
| () | (<CONDITION 1> AND <CONDITION 2>) OR <CONDITION 3> | Group together a condition |
| | |
| ------ | ----------------------------------------------------------------------------------------------------- |
| Scroll | Table: Scroll
Chart: Zooms in or out by scrolling up or down respectively |
| Click | Selects the clicked widget, table entry, dialog option, or tab.
Can be disabled via options/flags. |
| | | | ------ | --------------------------------------------------------------------- | | Scroll | Scrolling over an CPU core/average shows only that entry on the chart |
| | | | ---------------------- | --------------------------------------------------------------------------------------------------- | | Click on process entry | If in tree mode and you click on a selected entry, it toggles whether the branch is expanded or not | | Click on table header | Sorts the widget by that column, or inverts the sort if already selected |
As yet another process/system visualization and management application, bottom supports the typical features:
CPU usage visualization, on an average and per-core basis
RAM and swap usage visualization
Network visualization for receiving and transmitting
Display information about disk capacity and I/O per second
Display temperatures from sensors
Display information regarding processes, like CPU, memory, I/O usage, user, and process state
Process management (well, if process killing is all you need)
It also aims to be:
Lightweight
Cross-platform - supports 64-bit Linux, Windows, and macOS
In addition, bottom also currently has the following features:
On any process widget, hit / to bring up a search bar. If the layout has multiple process widgets, note this search is independent of other widgets.
By default, just typing in something will search by process name:
This simple search can be refined by matching by case, matching the entire word, or by using regex:
Now let's say you want to search for two things - luckily, we have the AND and OR logical operators:
Furthermore, one is able to refine their searches by CPU usage, memory usage, PID, and more. For example:
You can see all available keywords and query options here.
You can sort the processes list by any column you want by pressing s while on a process widget:
Use t or F5 to toggle tree mode in a process widget. This is somewhat similar to htop's tree
mode.
Sorting works as well, but it is done per groups of siblings. For example, by CPU%:
You can also still filter processes. Branches that entirely do not match the query are pruned out, but if a branch contains an element that does match the query, any non-matching elements will instead just be greyed out, so the tree structure is still maintained:
Using the +/- keys or the scroll wheel will move the current time intervals of the currently selected widget, and = to reset the zoom levels to the default.
Widgets can hold different time intervals independently. These time intervals can be adjusted using the
-t/--default_time_value and -d/--time_delta options, or their corresponding config options.
Only care about one specific widget? You can go to that widget and hit e to make that widget expand and take
up the entire drawing area. You can minimize this expanded widget with Esc or pressing e again.
Using the -b or --basic_mode (or their corresponding config options) will open bottom in basic mode.
There are no charts or expanded mode when using this, and tables are condensed such that only one table is displayed
at a time.
Note custom layouts are currently not available when this is used.
bottom supports reading from a config file to customize its behaviour and look. By default, bottom will look at (based on dirs):
| OS | Location |
| ----------------------------------------------------------------------- | -------- |
| ~/.config/bottom/bottom.toml or $XDG_CONFIG_HOME/bottom/bottom.toml | Linux |
| $HOME/Library/Application Support/bottom/bottom.toml | macOS |
| C:\Users\<USER>\AppData\Roaming\bottom\bottom.toml | Windows |
Note that if a config file does not exist at either the default location or the passed in location via -C or --config, one is automatically created with no settings applied.
The following options can be set under [flags] to achieve the same effect as passing in a flag on runtime. Note that if a flag is given, it will override the config file.
These are the following supported flag config values, which correspond to the flag of the same name described in Flags:
| Field | Type | Functionality |
| ---------------------------- | ---------------------------------------------------------------------------------------------- | -------------------------------------------------------------- |
| hide_avg_cpu | Boolean | Hides the average CPU usage. |
| dot_marker | Boolean | Uses a dot marker for graphs. |
| 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) | Sets a refresh rate in ms. |
| default_time_value | Unsigned Int (represents milliseconds) | Default time value for graphs in ms. |
| time_delta | Unsigned Int (represents milliseconds) | The amount in ms changed upon zooming. |
| 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. |
| color | String (one of ["default", "default-light", "gruvbox", "gruvbox-light", "nord", "nord-light"]) | Use a color scheme, use --help for supported values. |
| mem_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. |
| process_command | Boolean | Show processes as their commands by default. |
| disable_advanced_kill | Boolean | Hides advanced options to stop a process on Unix-like systems. |
| 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. |
The config file can be used to set custom colours for parts of the application under the [colors] object. The following labels are customizable with strings that are hex colours, RGB colours, or specific named colours.
Supported named colours are one of the following strings: Reset, Black, Red, Green, Yellow, Blue, Magenta, Cyan, Gray, DarkGray, LightRed, LightGreen, LightYellow, LightBlue, LightMagenta, LightCyan, White.
| Labels | Details | Example |
| ------------------------------- | ------------------------------------------------------- | ------------------------------------------------------- |
| Table header colours | Colour of table headers | table_header_color="255, 255, 255" |
| CPU colour per core | Colour of each core. Read in order. | cpu_core_colors=["#ffffff", "white", "255, 255, 255"] |
| Average CPU colour | The average CPU color | avg_cpu_color="White" |
| All CPUs colour | The colour for the "All" CPU label | all_cpu_color="White" |
| RAM | The colour RAM will use | ram_color="#ffffff" |
| SWAP | The colour SWAP will use | swap_color="#ffffff" |
| RX | The colour rx will use | rx_color="#ffffff" |
| TX | The colour tx will use | tx_color="#ffffff" |
| Widget title colour | The colour of the label each widget has | widget_title_color="#ffffff" |
| Border colour | The colour of the border of unselected widgets | border_color="#ffffff" |
| Selected border colour | The colour of the border of selected widgets | highlighted_border_color="#ffffff" |
| Text colour | The colour of most text | text_color="#ffffff" |
| Graph colour | The colour of the lines and text of the graph | graph_color="#ffffff" |
| Cursor colour | The cursor's colour | cursor_color="#ffffff" |
| Selected text colour | The colour of text that is selected | scroll_entry_text_color="#ffffff" |
| Selected text background colour | The background colour of text that is selected | scroll_entry_bg_color="#ffffff" |
| High battery level colour | The colour used for a high battery level (100% to 50%) | high_battery_color="green" |
| Medium battery level colour | The colour used for a medium battery level (50% to 10%) | medium_battery_color="yellow" |
| Low battery level colour | The colour used for a low battery level (10% to 0%) | low_battery_color="red" |
bottom supports customizable layouts via the config file. Currently, layouts are controlled by using TOML objects and arrays.
For example, given the sample layout:
toml
[[row]]
[[row.child]]
type="cpu"
[[row]]
ratio=2
[[row.child]]
ratio=4
type="mem"
[[row.child]]
ratio=3
[[row.child.child]]
type="temp"
[[row.child.child]]
type="disk"
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 |
| "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.
For an example, look at the default config, which contains the default layout.
Furthermore, you can have duplicate widgets. This means you could do something like:
toml
[[row]]
ratio=1
[[row.child]]
type="cpu"
[[row.child]]
type="cpu"
[[row.child]]
type="cpu"
[[row]]
ratio=1
[[row.child]]
type="cpu"
[[row.child]]
type="empty"
[[row.child]]
type="cpu"
[[row]]
ratio=1
[[row.child]]
type="cpu"
[[row.child]]
type="cpu"
[[row.child]]
type="cpu"
and get the following CPU donut:
You can hide specific disks, temperature sensors, and networks by name in the config file via disk_filter and mount_filter, temp_filter, and net_filter respectively. Regex (regex = true), case-sensitivity (case_sensitive = true), and matching only if the entire word matches (whole_word = true) are supported, but are off by default. Filters default to denying entries that match and can be toggled by setting is_list_ignored to false in the config file.
For example, here's the disk widget with no filter:
The following in the config file would filter out some entries by disk name:
toml
[disk_filter]
is_list_ignored = true
list = ["/dev/sda"]
regex = true
case_sensitive = false
whole_word = false
If there are two potentially conflicting filters (i.e. when you are using both a disk and mount filter), the filter that explicitly allows an entry takes precedence over a filter that explicitly denies one. So for example, let's say I set a disk filter accepting anything with /dev/sda, but deny anything with /mnt/.* or /. So to do so, I write in the config file:
```toml [diskfilter] islistignored = false list = ["/dev/sda"] regex = true casesensitive = false whole_word = false
[mountfilter] islistignored = true list = ["/mnt/.*", "/"] regex = true casesensitive = false whole_word = true ```
Which gives me:
You can get battery statistics (charge, time to fill/discharge, consumption in watts, and battery health) via the battery widget.
Since this is only useful for devices like laptops, it is off by default. You can either enable the widget in the default layout via the --battery flag, or by specifying the widget in a layout:
Please see the FAQ for answers to frequently asked questions.
Contribution is always welcome! Please take a look at CONTRIBUTING.md for details on how to help.
Thanks to all contributors (emoji key):
This project is very much inspired by gotop, its successor ytop, and gtop.
Basic mode is heavily inspired by htop's design.
This application was written with many, many libraries, and built on the work of many talented people. This application would be impossible without their work. I used to thank them all individually but the list got too large...
And of course, thanks to all contributors!
