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Change the tmux prefix to ctrl+space

April 1, 2020  ‐ 1 min read

Tmux uses ctrl+b as default prefix. I rather have it set to ctrl+Space. The space bar is hard to miss. And I use it as leader in VIM, so I like the consistency.

To configure the prefix we need to make a change in the ~/.tmux.conf file. Following the example in the tmux man pages, we make the following addition in the tmux config.

# ~/.tmux.conf

unbind-key C-b

set-option -g prefix C-Space

bind-key C-Space send-prefix

Learn more

A great resource for learning more about tmux are its man pages. You can read them online here or from the command-line using the following command:

$ man tmux

Or take a look at this book: