Now let's say there is a key binding that you want to remove for some reason. This is very easy; just add an unbind directive to your .tmux.conf file.

Say we wanted to unbind 0 from its default action of selecting window 0 for some reason. To do this, simply add the following code snippet to your configuration:

unbind 0

Note that there is no need to explicitly unbind a key before binding it to something else; every key can only have one binding. So, we find it rather rare to use this bit of utility, but it's nice to know it's there when you need it.