tmux shortcuts & cheatsheet

start new:

start new with session name:
tmux new -s myname

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:


ctrl-b :new<CR>  new session
ctrl-b s  list sessions
ctrl-b $  name session
ctrl-b d  detach from active session

Windows (tabs)

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

Panes (splits)

ctrl-b %  vertical split
ctrl-b "  horizontal split

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

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 20 (Resizes the pane with the id of 2 down by 20 cells)
<prefix> : resize-pane -t -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


ctrl-b d  detach
ctrl-b t  big clock
ctrl-b ?  list shortcuts
ctrl-b :  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