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docs: More on abbr

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Fabian Boehm 2022-12-15 17:53:31 +01:00
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doc_src/interactive.rst
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@ -197,9 +197,18 @@ To avoid needless typing, a frequently-run command like ``git checkout`` can be
abbr -a gco git checkout
After entering ``gco`` and pressing :kbd:`Space` or :kbd:`Enter`, the full text ``git checkout`` will appear in the command line.
After entering ``gco`` and pressing :kbd:`Space` or :kbd:`Enter`, the ``gco`` will turn into ``git checkout`` in the command line.
This is an alternative to aliases, and has the advantage that you see the actual command before using it, and the actual command will be stored in history.
This is a lot more powerful, for example you can make going up a number of directories easier with this::
function multicd
echo cd (string repeat -n (math (string length -- $argv[1]) - 1) ../)
end
abbr --add dotdot --regex '^\.\.+$' --function multicd
Now, ``..`` transforms to ``cd ../``, while ``...`` turns into ``cd ../../`` and ``....`` expands to ``cd ../../../``.
The advantage over aliases is that you can see the actual command before using it, add to it or change it, and the actual command will be stored in history.
.. _title: