skip to content W3C SVG

Terminal Cockpits With Tmux

Jul 18, 2019
Apr 22, 2020
tmux
terminal multiplexer to quickly switch to app
tmux-session for applications
sample

Use cases

  1. watch all your repo status - call it repo dashboard
    • watch 'git status'
  2. pair-programming and share terminal

Tmux scripting

  • various projects may have various setups
  • New tmux window for each project

Listing, renaming and killing windows and panes

all keyboard shortcuts are run inside tmux session with PREFIX

Sessions

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

Windows / tabs

w           windows list
,           rename window
c           new window
f           find window
&           kill window

n           next window switch
p           previous window switch
<number>    jump to window with number - number starts from 0

Misc

?  list shortcuts
d  detach
t  time - display clock
:  prompt
q  display pane numbers for a short while
# Silently run processes in tmux in background tmux new-session \ -s session-name \ -n window-name \ -d htop # To attach use tmux attach -t session-name
  1. Only creates session and doesn’t attach to them. Alias new
  2. To detach new-session from current terminal window, unless specified
  3. Linux command to run inside tmux window
  4. alias for attach-session

Session Management

tmux new -s session_name
creates a new tmux session named session_name
tmux attach -t session_name
attaches to an existing tmux session named session_name
tmux switch -t session_name
switches to an existing session named session_name
tmux list-sessions
lists existing tmux sessions
tmux detach (prefix + d)
detach the currently attached session

How to scroll in tmux

CTRL + b then [ then you can use your normal navigation keys to scroll around (eg. Up Arrow or PgDn). Press q to quit scroll mode.

Alternatively you can press Ctrl-b PgUp to go directly into copy mode and scroll one page up (which is what it sounds like you will want most of the time)

Window Management

tmux new-window (prefix + c)
create a new window
tmux select-window -t :0-9 (prefix + 0-9)
move to the window based on index
tmux rename-window (prefix + ,)
rename the current window
tmux split-window (prefix + ")
splits the window into two vertical panes
tmux split-window -h (prefix + %)
splits the window into two horizontal panes
tmux swap-pane -[UDLR] (prefix + { or })
swaps pane with another in the specified direction
tmux select-pane -[UDLR]
selects the next pane in the specified direction
tmux select-pane -t :.+
selects the next pane in numerical order
tmux list-keys
lists out every bound key and the tmux command it runs
tmux list-commands
lists out every tmux command and its arguments
tmux info
lists out every session, window, pane, its pid, etc.
tmux source-file ~/.tmux.conf
reloads the current tmux configuration (based on a default tmux config)

swap

sudo swapon --show sudo swapon --summary sudo fallocate -l 4G /swapfile sudo mkswap /swapfile sudo swapon /swapfile free -h cat /proc/sys/vm/swappiness cat /proc/swaps
  1. Displays SWAP on system

How do I add fresh new swap?

Turn swapon and swapoff from GParted tool

Terminal Applications

Which tools languages to use? NOde, python, rust, bash? How to choose?

My Projects

Footnotes

[^2]: