fish-shell/doc_src/cmds/fish_prompt.rst
Aaron Gyes af61ea1325 doc_src: Continue the slog through the letter F.
We are using only :: in a synopsis for fishscript examples given
of the command being documented.
2021-12-17 15:16:47 -08:00

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.. _cmd-fish_prompt:
fish_prompt - define the appearance of the command line prompt
==============================================================
Synopsis
--------
``fish_prompt``
::
function fish_prompt
...
end
Description
-----------
The ``fish_prompt`` function is executed when the prompt is to be shown, and the output is used as a prompt.
The exit status of commands within ``fish_prompt`` will not modify the value of :ref:`$status <variables-status>` outside of the ``fish_prompt`` function.
``fish`` ships with a number of example prompts that can be chosen with the ``fish_config`` command.
Example
-------
A simple prompt:
::
function fish_prompt -d "Write out the prompt"
# This shows up as USER@HOST /home/user/ >, with the directory colored
# $USER and $hostname are set by fish, so you can just use them
# instead of using `whoami` and `hostname`
printf '%s@%s %s%s%s > ' $USER $hostname \
(set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
end