How to run nested tmux session
tmux is a program that provides a convenient way for getting multiple terminal sessions into one window. If you are using it a lot, quickly you can find yourself asking for more - multilevel tmux. Example of nested tmux session:
There are 2 settings necessary for this setup to work as expected. Inside
~/.tmux.conf you need:
bind-key -n c-g send-prefix bind-key -n c-t send-keys c-g
for prefix key access to nested windows. The default prefix is ctrl+b, so here I'm setting
ctrl+g to work as prefix on the second level of tmux, and
ctrl+t to work on the third level.
Thanks to configuration like this, if you use
c to create a new window on the first level of tmux, you will use:
c- to create window on the second level
c- to create window on the first
The other setting is inside your
If we skip this, we will end up seeing:
$ tmux new -s test sessions should be nested with care, unset $TMUX to force
In this short guide, we have seen how to set up our tmux to support nesting with minimal configuration & nice mapping for prefix key. Let me know in the comments if you are interested.
Interested in reading more such articles from Marcin Wosinek?
Support the author by donating an amount of your choice.