GNU Screen has Ctrl-a,Ctrl-a to switch between the two latest windows.

How to do it in tmux?

  • that's easily answered yourself question. Another one — which is a way harder to answer is how to switch to the last window
    – poige
    May 22, 2020 at 5:45

4 Answers 4


To do this in tmux, you do


(that is an 'L'). This assumes you have left Ctrl-B as your activation key.

If you want to use the same keypresses as screen, then add the following to your ~/.tmux.conf:

set-option -g prefix C-a
bind-key C-a last-window

The first sets Ctrl-A as your activation key, the second says Ctrl-A after activation should go to the last window.


Paul's answer is correct, but it seems to leave you without a way to type ^A.

See this thread for details, but essentially you can do this to get a C-a (^A) if you need one:

bind-key v send-prefix

Now if you type C-a v you'll get a ^A.


To follow on to fbicknel and Paul:

you can

bind-key C-a last-window
bind-key a send-prefix

which will let you use a screen-like "ctrl-a a" to insert a 'ctrl a'


I added:
bind-key l last-window
Into my tmux config file which by default is at ~/.tmux.conf.
Reload tmux, switch windows at least once and press:
ctrl+B (default prefix) + l (lower-case L) works like a charm!

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