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by fish-shell

fish-shell /fish-shell

The user-friendly command line shell.

15.3K Stars 1.3K Forks Last release: 3 months ago (3.1.2) Other 12.6K Commits 63 Releases

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fish <https:></https:>

__ - the friendly interactive shell |Build Status|

fish is a smart and user-friendly command line shell for macOS, Linux, and the rest of the family. fish includes features like syntax highlighting, autosuggest-as-you-type, and fancy tab completions that just work, with no configuration required.

For more on fish’s design philosophy, see the

design document <https:></https:>


Quick Start

fish generally works like other shells, like bash or zsh. A few important differences can be found at by searching for the magic phrase “unlike other shells”.

Detailed user documentation is available by running


within fish, and also at

You can quickly play with fish right in your browser by clicking the button below:

|Try in browser|

Getting fish

macOS ~

fish can be installed:

  • using
    Homebrew <http:></http:>
    brew install fish
  • using
    MacPorts <https:></https:>
    sudo port install fish
  • using the
    installer from <https:></https:>
  • as a
    standalone app from <https:></https:>

Packages for Linux ~

Packages for Debian, Fedora, openSUSE, and Red Hat Enterprise Linux/CentOS are available from the

openSUSE Build Service <https:></https:>


Packages for Ubuntu are available from the

fish PPA <https:></https:>

__, and can be installed using the following commands:


sudo apt-add-repository ppa:fish-shell/release-3 sudo apt-get update sudo apt-get install fish

Instructions for other distributions may be found at <https:></https:>


Windows ~

  • On Windows 10, fish can be installed under the WSL Windows Subsystem for Linux with the instructions for the appropriate distribution listed above under “Packages for Linux”, or from source with the instructions below.
  • Fish can also be installed on all versions of Windows using
    Cygwin <https:></https:>
    __ (from the Shells category).

Building from source ~

If packages are not available for your platform, GPG-signed tarballs are available from <https:></https:>

__ and

fish-shell on GitHub <https:></https:>

__. See the_Building_ section for instructions.

Running fish

Once installed, run


from your current shell to try fish out!

Dependencies ~

Running fish requires:

  • curses or ncurses (preinstalled on most *nix systems)
  • some common *nix system utilities (currently
    ), in addition to the basic POSIX utilities (
    at least, but the full coreutils plus find, sed and awk is preferred)
  • The gettext library, if compiled with translation support

The following optional features also have specific requirements:

  • builtin commands that have the ```
  • -help
    option or print usage messages require 
    and either 
    mandoc ``` for display
  • automated completion generation from manual pages requires Python (2.7+ or 3.3+) and possibly the
    module for Python 2.7
  • the
    web configuration tool requires Python (2.7+ or 3.3 +) and a web browser
  • system clipboard integration (with the default Ctrl-V and Ctrl-X bindings) require either the
  • full completions for
    require the
    NPM module

Switching to fish ~

If you wish to use fish as your default shell, use the following command:


chsh -s /usr/local/bin/fish


will prompt you for your password and change your default shell. (Substitute


with whatever path fish was installed to, if it differs.) Log out, then log in again for the changes to take effect.

Use the following command if fish isn’t already added to


to permit fish to be your login shell:


echo /usr/local/bin/fish | sudo tee -a /etc/shells

To switch your default shell back, you can run

chsh -s /bin/bash







as appropriate).


.. _dependencies-1:

Dependencies ~

Compiling fish requires:

  • a C++11 compiler (g++ 4.8 or later, or clang 3.3 or later)
  • CMake (version 3.2 or later)
  • a curses implementation such as ncurses (headers and libraries)
  • PCRE2 (headers and libraries) - a copy is included with fish
  • gettext (headers and libraries) - optional, for translation support

Sphinx is also optionally required to build the documentation from a cloned git repository.

Additionally, running the test suite requires python 3.3+ and the pexpect package.

Building from source (all platforms) - Makefile generator ~

To install into


, run:

.. code:: bash

mkdir build; cd build cmake .. make sudo make install

The install directory can be changed using the


parameter for



Building from source (macOS) - Xcode ~

.. code:: bash

mkdir build; cd build cmake .. -G Xcode

An Xcode project will now be available in the


subdirectory. You can open it with Xcode, or run the following to build and install in



.. code:: bash

xcodebuild xcodebuild -scheme install

The install directory can be changed using the


parameter for



Help, it didn’t build! ~

If fish reports that it could not find curses, try installing a curses development package and build again.

On Debian or Ubuntu you want:


sudo apt-get install build-essential cmake ncurses-dev libncurses5-dev libpcre2-dev gettext

On RedHat, CentOS, or Amazon EC2:


sudo yum install ncurses-devel

Contributing Changes to the Code

See the

Guide for Developers <contributing.rst></contributing.rst>


Contact Us

Questions, comments, rants and raves can be posted to the official fish mailing list at or join us on our channel <https:></https:>

**. Or use the

fish tag on Stackoverflow <https:></https:>
```** for questions related to fish script and the 

fish tag on Superuser https:

\_\_ for all other questions (e.g., customizing colors, changing key bindings).

Found a bug? Have an awesome idea? Please

open an issue https:

``` __.

.. |Build Status| image:: :target: .. |Try in browser| image:: :target:

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