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26 lines
794 B
Markdown
26 lines
794 B
Markdown
# Change The Default Prefix Key
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The _prefix_ key for tmux is a key that tells an active tmux session that the
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following key should be interpreted as a tmux command instead of regular input
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to the terminal.
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By default, tmux has `Ctrl-b` bound to the prefix.
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So, hitting `Ctrl-b` followed by `?` will open up the tmux help.
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Typing `Ctrl-b` involves a bit of a finger stretch. It can be changed to
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something more comfortable. My personal preference is `Ctrl-z`. Many
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configurations I've seen use `Ctrl-a`.
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To change this, open up your `~/.tmux.conf` file and add two lines.
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```
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unbind C-b
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set -g prefix C-z
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```
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And then run `:source-file ~/.tmux.conf`.
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This tells tmux to unbind `Ctrl-b` so that it no longer is interpreted as the
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prefix, and then it binds `Ctrl-z` as the new prefix key.
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