Last update in 11/2019

Tmux is terminal multiplexer. What is that? Running multiple terminals at once. Can't get much simpler than that.

But why am I reading this, my terminal already has this feature? To some extent yes, but Tmux has much more functionality than your average terminal. This article will provide cheatsheet for commands you'll use day-to-day in tmux.

Sessions #

Tmux sessions work like Virtual Machines. You can turn them on (attach to them) and turn them off (detach from them) and they'll save working state.

Open new session #


Open new session with name #

tmux new -s sessionName

Delete session #

tmux kill-session -t sessionName

Delete all sessions #

tmux kill-session -a

Rename current session #

Ctrl + b and then $

List all sessions #

tmux ls

Attach to last session #

tmux attach

Attach to session with name #

tmux attach -t sessionName

Windows #

Don't worry, we aren't talking about Microsoft Windows. If you've never worked with tmux windows before, they are nothing fancy, think about them like tabs in classical terminal.

Create new window #

Ctrl + b and then c

Close current window #

Ctrl + b and then &

Switch to next window #

Ctrl + b and then n

Switch to previous window #

Ctrl + b and then p

Switch to window with number #

Ctrl + b and then number of window

Rename current window #

Ctrl + b and then ,

Panes #

Like splits in Vim, tmux panes enable you to use two programs side by side.

Split vertically #

Ctrl + b and then %

Split horizontally #

Ctrl + b and then "

Switch to pane #

Ctrl + b and then arrow key in direction of pane.

Resize current pane #

Ctrl + b and then hold arrow key in direction you want to resize.

Close current pane #

Ctrl + b and then x

Transform pane to window #

Ctrl + b and then !

Copy mode #

While starting out with tmux, you've probably noticed that you can't scroll up. Well, you actually can. But it's bit more complicated than that. You have to switch to so-called Copy mode. Copy mode uses key bindings that will be very familiar to Vim users.

Switch to copy mode #

Ctrl + b and then [

Quit copy mode #


Moving around #

Select #

/ followed by your search query and then enter

And that is it. These are all tmux commands I use (and always forget).