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56 lines
1.9 KiB
ReStructuredText
56 lines
1.9 KiB
ReStructuredText
.. _cmd-alias:
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alias - create a function
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=========================
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Synopsis
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--------
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| ``alias``
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| ``alias`` [*OPTIONS*] *NAME* *DEFINITION*
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| ``alias`` [*OPTIONS*] *NAME*=*DEFINITION*
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Description
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-----------
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``alias`` is a simple wrapper for the ``function`` builtin, which creates a function wrapping a command. It has similar syntax to POSIX shell ``alias``. For other uses, it is recommended to define a :ref:`function <cmd-function>`.
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``fish`` marks functions that have been created by ``alias`` by including the command used to create them in the function description. You can list ``alias``-created functions by running ``alias`` without arguments. They must be erased using ``functions -e``.
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- ``NAME`` is the name of the alias
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- ``DEFINITION`` is the actual command to execute. The string ``$argv`` will be appended.
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You cannot create an alias to a function with the same name. Note that spaces need to be escaped in the call to ``alias`` just like at the command line, *even inside quoted parts*.
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The following options are available:
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- **-h** or **--help** displays help about using this command.
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- **-s** or **--save** Automatically save the function created by the alias into your fish configuration directory using :ref:`funcsave <cmd-funcsave>`.
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Example
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-------
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The following code will create ``rmi``, which runs ``rm`` with additional arguments on every invocation.
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::
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alias rmi="rm -i"
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# This is equivalent to entering the following function:
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function rmi --wraps rm --description 'alias rmi=rm -i'
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rm -i $argv
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end
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# This needs to have the spaces escaped or "Chrome.app..."
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# will be seen as an argument to "/Applications/Google":
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alias chrome='/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome banana'
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See more
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--------
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1. The :ref:`function <cmd-function>` builtin this builds on.
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2. :ref:`Functions <syntax-function>`.
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3. :ref:`Function wrappers <syntax-function-wrappers>`.
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