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tmux

tmux command 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:

Sessions

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

WindowsTabs

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

PanesSplits

  %  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 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.

    /tmux action/       /vim/            /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
 Sroll 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
  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.txt · Last modified: 2018/02/02 13:12 by apollo