tmux shortcuts & cheatsheet

tmux-cheatsheet.markdown

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

attach:

tmux a  #  (or at, or attach)

attach to named:

tmux a -t myname

list sessions:

tmux ls

kill session:

tmux kill-session -t myname

Kill all the tmux sessions:

tmux ls | grep : | cut -d. -f1 | awk '{print substr($1, 0, length($1)-1)}' | xargs kill

In tmux, hit the prefix ctrl+b (my modified prefix is ctrl+a) and then:

List all shortcuts

to see all the shortcuts keys in tmux simply use the bind-key ? in my case that would be CTRL-B ?

Sessions

:new<CR>  new session
s  list sessions
$  name session

Windows (tabs)

c  create window
w  list windows
n  next window
p  previous window
f  find window
,  name window
&  kill window

Panes (splits)

%  vertical split
"  horizontal split

o  swap panes
q  show pane numbers
x  kill pane
+  break pane into window (e.g. to select text by mouse to copy)
-  restore pane from window
⍽  space - toggle between layouts
<prefix> q (Show pane numbers, when the numbers show up type the key to goto that pane)
<prefix> { (Move the current pane left)
<prefix> } (Move the current pane right)
<prefix> z toggle pane zoom

Sync Panes

You can do this by switching to the appropriate window, typing your Tmux prefix (commonly Ctrl-B or Ctrl-A) and then a colon to bring up a Tmux command line, and typing:

:setw synchronize-panes

You can optionally add on or off to specify which state you want; otherwise the option is simply toggled. This option is specific to one window, so it won’t change the way your other sessions or windows operate. When you’re done, toggle it off again by repeating the command. tip source

Resizing Panes

You can also resize panes if you don’t like the layout defaults. I personally rarely need to do this, though it’s handy to know how. Here is the basic syntax to resize panes:

PREFIX : resize-pane -D (Resizes the current pane down)
PREFIX : resize-pane -U (Resizes the current pane upward)
PREFIX : resize-pane -L (Resizes the current pane left)
PREFIX : resize-pane -R (Resizes the current pane right)
PREFIX : resize-pane -D 20 (Resizes the current pane down by 20 cells)
PREFIX : resize-pane -U 20 (Resizes the current pane upward by 20 cells)
PREFIX : resize-pane -L 20 (Resizes the current pane left by 20 cells)
PREFIX : resize-pane -R 20 (Resizes the current pane right by 20 cells)
PREFIX : resize-pane -t 2 -L 20 (Resizes the pane with the id of 2 left by 20 cells)

Copy mode:

Pressing PREFIX [ places us in Copy mode. We can then use our movement keys to move our cursor around the screen. By default, the arrow keys work. we set our configuration file to use Vim keys for moving between windows and resizing panes so we wouldn’t have to take our hands off the home row. tmux has a vi mode for working with the buffer as well. To enable it, add this line to .tmux.conf:

setw -g mode-keys vi

With this option set, we can use h, j, k, and l to move around our buffer.

To get out of Copy mode, we just press the ENTER key. Moving around one character at a time isn’t very efficient. Since we enabled vi mode, we can also use some other visible shortcuts to move around the buffer.

For example, we can use "w" to jump to the next word and "b" to jump back one word. And we can use "f", followed by any character, to jump to that character on the same line, and "F" to jump backwards on the line.

   Function                vi             emacs
   Back to indentation     ^              M-m
   Clear selection         Escape         C-g
   Copy selection          Enter          M-w
   Cursor down             j              Down
   Cursor left             h              Left
   Cursor right            l              Right
   Cursor to bottom line   L
   Cursor to middle line   M              M-r
   Cursor to top line      H              M-R
   Cursor up               k              Up
   Delete entire line      d              C-u
   Delete to end of line   D              C-k
   End of line             $              C-e
   Goto line               :              g
   Half page down          C-d            M-Down
   Half page up            C-u            M-Up
   Next page               C-f            Page down
   Next word               w              M-f
   Paste buffer            p              C-y
   Previous page           C-b            Page up
   Previous word           b              M-b
   Quit mode               q              Escape
   Scroll down             C-Down or J    C-Down
   Scroll up               C-Up or K      C-Up
   Search again            n              n
   Search backward         ?              C-r
   Search forward          /              C-s
   Start of line           0              C-a
   Start selection         Space          C-Space
   Transpose chars                        C-t

Misc

d  detach
t  big clock
?  list shortcuts
:  prompt

Configurations Options:

# Mouse support - set to on if you want to use the mouse
* setw -g mode-mouse off
* set -g mouse-select-pane off
* set -g mouse-resize-pane off
* set -g mouse-select-window off

# Set the default terminal mode to 256color mode
set -g default-terminal "screen-256color"

# enable activity alerts
setw -g monitor-activity on
set -g visual-activity on

# Center the window list
set -g status-justify centre

# Maximize and restore a pane
unbind Up bind Up new-window -d -n tmp \; swap-pane -s tmp.1 \; select-window -t tmp
unbind Down
bind Down last-window \; swap-pane -s tmp.1 \; kill-window -t tmp

Resources:

• tmux: Productive Mouse-Free Development
• How to reorder windows

Notes:

Changelog:

• 1411143833002 - Added toggle zoom under Panes (splits) section.
• 1411143833002 - Added Sync Panes
• 1414276652677 - Added Kill all tmux sessions
• 1438585211173 - corrected create and add next and previus thanks to @justinjhendrick
• 1676001639197 - corrected a typo Thanks to @justinjhendrick

Request an Update:

We Noticed that our Cheatsheet is growing and people are coloberating to add new tips and tricks, so please tweet to me what would you like to add and let's make it better!

• Twitter: @MohammedAlaa

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This tmux cheatsheet is super handy! I've been looking for a quick reference for common commands. It reminds me a bit of how you have to make strategic choices to navigate complex relationships and different paths in games like Invoked.

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The setw synchronize-panes note is a crucial reminder—it's easy to forget it's window-specific and accidentally broadcast commands across all panes. The vi-mode copy movement (setw -g mode-keys vi) is another great tip for staying on the home row. A helpful resource for a break: mistfall hunter builds.

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This is a great cheatsheet! I've been looking for a good tmux reference, and this covers all the essentials. The copy mode section is particularly helpful. The Choicer Voicer

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This is the clearest tmux reference I’ve come across. I especially appreciate the distinction between sessions, windows, and panes laid out in one place. I’ve been using tmux new -s myname for a while, but I always forget the attach syntax and end up Googling it—having tmux a -t myname right here is going to save me time.

One feature I’ve started using heavily is setw synchronize-panes. The article notes that it only affects the current window, which is a nice safety net. It’s incredibly useful when I need to run the same command on multiple SSH sessions, but I’ve also almost accidentally run something destructive because I forgot it was on. Do you have any tricks for making it visually obvious that sync is enabled, like a status-bar indicator in .tmux.conf?

The resize-pane commands are also something I never memorized. I usually just drag borders with the mouse, but resize-pane -D 20 and the -t target variant feel much more precise. And thanks for including the copy mode note—setting setw -g mode-keys vi made navigating the scrollback buffer far more comfortable for me since I’m already used to Vim keys. I did notice the article cuts off the copy-mode exit command; in case anyone else is wondering, q exits copy mode and Enter or y copies the selection depending on your setup.

One minor warning: the “Kill all the tmux sessions” pipeline is powerful, but it’s a blunt instrument. I prefer tmux kill-server when I truly want everything gone, just to avoid any weird parsing issues with session names.

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This is very useful. For some reason, the mouse config did't work for me (got "Invalid option") . Used set -g mouse on instead.

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