mirror of
https://github.com/fish-shell/fish-shell
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3a23fdf359
Includes harmonizing the display of options and arguments, standardising terminology, using the envvar directive more broadly, adding help options to all commands that support them, simplifying some language, and tidying up multiple formatting issues. string documentation is not changed.
87 lines
3.3 KiB
ReStructuredText
87 lines
3.3 KiB
ReStructuredText
.. _cmd-fish_add_path:
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.. program::fish_add_path
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fish_add_path - add to the path
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==============================================================
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Synopsis
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--------
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.. synopsis::
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fish_add_path path ...
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fish_add_path [(-g | --global) | (-U | --universal) | (-P | --path)] [(-m | --move)] [(-a | --append) | (-p | --prepend)] [(-v | --verbose) | (-n | --dry-run)] PATHS ...
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Description
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-----------
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:program:`fish_add_path` is a simple way to add more components to fish's :envvar:`PATH`. It does this by adding the components either to $fish_user_paths or directly to $PATH (if the ``--path`` switch is given).
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It is (by default) safe to use :program:`fish_add_path` in config.fish, or it can be used once, interactively, and the paths will stay in future because of :ref:`universal variables <variables-universal>`. This is a "do what I mean" style command, if you need more control, consider modifying the variable yourself.
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Components are normalized by :ref:`realpath <cmd-realpath>`. Trailing slashes are ignored and relative paths are made absolute (but symlinks are not resolved). If a component already exists, it is not added again and stays in the same place unless the ``--move`` switch is given.
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Components are added in the order they are given, and they are prepended to the path unless ``--append`` is given (if $fish_user_paths is used, that means they are last in $fish_user_paths, which is itself prepended to $PATH, so they still stay ahead of the system paths).
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If no component is new, the variable (:envvar:`fish_user_paths` or :envvar:`$PATH`) is not set again or otherwise modified, so variable handlers are not triggered.
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If a component is not an existing directory, ``fish_add_path`` ignores it.
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Options
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-------
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**-a** or **--append**
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Add components to the *end* of the variable.
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**-p** or **--prepend**
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Add components to the *front* of the variable (this is the default).
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**-g** or **--global**
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Use a global :envvar:`fish_user_paths`.
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**-U** or **--universal**
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Use a universal :envvar:`fish_user_paths` - this is the default if it doesn't already exist.
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**-P** or **--path**
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Manipulate :envvar:`PATH` directly.
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**-m** or **--move**
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Move already-existing components to the place they would be added - by default they would be left in place and not added again.
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**-v** or **--verbose**
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Print the :ref:`set <cmd-set>` command used.
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**-n** or **--dry-run**
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Print the ``set`` command that would be used without executing it.
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**-h** or **--help**
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Displays help about using this command.
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If ``--move`` is used, it may of course lead to the path swapping order, so you should be careful doing that in config.fish.
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Example
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-------
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::
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# I just installed mycoolthing and need to add it to the path to use it.
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> fish_add_path /opt/mycoolthing/bin
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# I want my ~/.local/bin to be checked first.
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> fish_add_path -m ~/.local/bin
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# I prefer using a global fish_user_paths
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> fish_add_path -g ~/.local/bin ~/.otherbin /usr/local/sbin
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# I want to append to the entire $PATH because this directory contains fallbacks
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> fish_add_path -aP /opt/fallback/bin
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# I want to add the bin/ directory of my current $PWD (say /home/nemo/)
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> fish_add_path -v bin/
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set fish_user_paths /home/nemo/bin /usr/bin /home/nemo/.local/bin
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# I have installed ruby via homebrew
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> fish_add_path /usr/local/opt/ruby/bin
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