Commands

This is a list of all the commands fish ships with.

Broadly speaking, these fall into a few categories:

Keywords ^^^^^^^^

Core language keywords that make up the syntax, like

:doc:if <cmds/if> and :doc:else <cmds/else> for conditions.
:doc:for <cmds/for> and :doc:while <cmds/while> for loops.
:doc:break <cmds/break> and :doc:continue <cmds/continue> to control loops.
:doc:function <cmds/function> to define functions.
:doc:return <cmds/return> to return a status from a function.
:doc:begin <cmds/begin> to begin a block and :doc:end <cmds/end> to end any block (including ifs and loops).
:doc:and <cmds/and>, :doc:or <cmds/or> and :doc:not <cmds/not> to combine commands logically.
:doc:switch <cmds/switch> and :doc:case <cmds/case> to make multiple blocks depending on the value of a variable.
:doc:command <cmds/command> or :doc:builtin <cmds/builtin> to tell fish what sort of thing to execute
:doc:time <cmds/time> to time execution
:doc:exec <cmds/exec> tells fish to replace itself with a command.
:doc:end <cmds/end> to end a block

Tools ^^^^^

Builtins to do a task, like

:doc:cd <cmds/cd> to change the current directory.
:doc:echo <cmds/echo> or :doc:printf <cmds/printf> to produce output.
:doc:set_color <cmds/set_color> to colorize output.
:doc:set <cmds/set> to set, query or erase variables.
:doc:read <cmds/read> to read input.
:doc:string <cmds/string> for string manipulation.
:doc:path <cmds/path> for filtering paths and handling their components.
:doc:math <cmds/math> does arithmetic.
:doc:argparse <cmds/argparse> to make arguments easier to handle.
:doc:count <cmds/count> to count arguments.
:doc:type <cmds/type> to find out what sort of thing (command, builtin or function) fish would call, or if it exists at all.
:doc:test <cmds/test> checks conditions like if a file exists or a string is empty.
:doc:contains <cmds/contains> to see if a list contains an entry.
:doc:eval <cmds/eval> and :doc:source <cmds/source> to run fish code from a string or file.
:doc:status <cmds/status> to get shell information, like whether it's interactive or a login shell, or which file it is currently running.
:doc:abbr <cmds/abbr> manages :ref:abbreviations.
:doc:bind <cmds/bind> to change bindings.
:doc:complete <cmds/complete> manages :ref:completions <tab-completion>.
:doc:commandline <cmds/commandline> to get or change the commandline contents.
:doc:fish_config <cmds/fish_config> to easily change fish's configuration, like the prompt or colorscheme.
:doc:random <cmds/random> to generate random numbers or pick from a list.

Known functions ^^^^^^^^^^^^^^^^

Known functions are a customization point. You can change them to change how your fish behaves. This includes:

:doc:fish_prompt <cmds/fish_prompt> and :doc:fish_right_prompt <cmds/fish_right_prompt> and :doc:fish_mode_prompt <cmds/fish_mode_prompt> to print your prompt.
:doc:fish_command_not_found <cmds/fish_command_not_found> to tell fish what to do when a command is not found.
:doc:fish_title <cmds/fish_title> to change the terminal's title.
:doc:fish_tab_title <cmds/fish_tab_title> to change the terminal tab's title.
:doc:fish_greeting <cmds/fish_greeting> to show a greeting when fish starts.
:doc:fish_should_add_to_history <cmds/fish_should_add_to_history> to determine if a command should be added to history

Helper functions ^^^^^^^^^^^^^^^^

Some helper functions, often to give you information for use in your prompt:

:doc:fish_git_prompt <cmds/fish_git_prompt> and :doc:fish_hg_prompt <cmds/fish_hg_prompt> to print information about the current git or mercurial repository.
:doc:fish_vcs_prompt <cmds/fish_vcs_prompt> to print information for either.
:doc:fish_svn_prompt <cmds/fish_svn_prompt> to print information about the current svn repository.
:doc:fish_status_to_signal <cmds/fish_status_to_signal> to give a signal name from a return status.
:doc:prompt_pwd <cmds/prompt_pwd> to give the current directory in a nicely formatted and shortened way.
:doc:prompt_login <cmds/prompt_login> to describe the current login, with user and hostname, and to explain if you are in a chroot or connected via ssh.
:doc:prompt_hostname <cmds/prompt_hostname> to give the hostname, shortened for use in the prompt.
:doc:fish_is_root_user <cmds/fish_is_root_user> to check if the current user is an administrator user like root.
:doc:fish_add_path <cmds/fish_add_path> to easily add a path to $PATH.
:doc:alias <cmds/alias> to quickly define wrapper functions ("aliases").
:doc:fish_delta <cmds/fish_delta> to show what you have changed from the default configuration.
:doc:export <cmds/export> as a compatibility function for other shells.

Helper commands ^^^^^^^^^^^^^^^

fish also ships some things as external commands so they can be easily called from elsewhere.

This includes :doc:fish_indent <cmds/fish_indent> to format fish code and :doc:fish_key_reader <cmds/fish_key_reader> to show you what escape sequence a keypress produces.

The full list ^^^^^^^^^^^^^

And here is the full list:

.. toctree:: :glob: :maxdepth: 1

cmds/*