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35 lines
1.4 KiB
Text
35 lines
1.4 KiB
Text
\section alias alias - create a function
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\subsection alias-synopsis Synopsis
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\fish{synopsis}
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alias
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alias NAME DEFINITION
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alias NAME=DEFINITION
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\endfish
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\subsection alias-description Description
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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 <a href='#function'>function</a>.
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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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\subsection alias-example Example
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The following code will create `rmi`, which runs `rm` with additional arguments on every invocation.
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\fish
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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..." 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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\endfish
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