# key_prefix

Source: https://libtmux.org/en/tmux/latest/catalog/formats/key_prefix/

> Global key prefix

format variable tmux3.7c

Global key prefix

* Type

  Text

* Usage

  `#{key_prefix}`

## Description[#](https://libtmux.org/en/tmux/latest/catalog/formats/key_prefix/#description)

Global key prefix

## Releases[#](https://libtmux.org/en/tmux/latest/catalog/formats/key_prefix/#releases)

* [tmux 3.7c](https://libtmux.org/en/tmux/3.7c/catalog/formats/key_prefix/) : present
* tmux 3.2a : not present

## Source[#](https://libtmux.org/en/tmux/latest/catalog/formats/key_prefix/#source)

* Defined in

  [`cmd-list-keys.c:155`](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/cmd-list-keys.c#L155)

* C source reference

  [`format_table`](https://libtmux.org/en/tmux/latest/reference/c-variable-format-c-format_table/)

* CLI Manual

  [Original manual entry](https://libtmux.org/en/tmux/latest/manual/full/#key_prefix)