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fish-shell/doc_src/cmds/prompt_pwd.rst
Johannes Altmanninger 7a59540517 docs: use :doc: role when referencing entire pages
No need to define "cmd-foo" anchors; use :doc:`foo <cmds/foo>`
instead. If we want "cmd-foo" but it should be tested.

See also 38b24c2325 (docs: Use :doc: role when linking to commands,
2022-09-23).
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prompt_pwd - print pwd suitable for prompt
==========================================
Synopsis
--------
.. synopsis::
prompt_pwd
Description
-----------
``prompt_pwd`` is a function to print the current working directory in a way suitable for prompts. It will replace the home directory with "~" and shorten every path component but the last to a default of one character.
To change the number of characters per path component, pass ``--dir-length=`` or set :envvar:`fish_prompt_pwd_dir_length` to the number of characters. Setting it to 0 or an invalid value will disable shortening entirely. This defaults to 1.
To keep some components unshortened, pass ``--full-length-dirs=`` or set :envvar:`fish_prompt_pwd_full_dirs` to the number of components. This defaults to 1, keeping the last component.
If any positional arguments are given, ``prompt_pwd`` shortens them instead of :envvar:`PWD`.
Options
-------
**-d** or **--dir-length** *MAX*
Causes the components to be shortened to *MAX* characters each. This overrides :envvar:`fish_prompt_pwd_dir_length`.
**-D** or **--full-length-dirs** *NUM*
Keeps *NUM* components (counted from the right) as full length without shortening. This overrides :envvar:`fish_prompt_pwd_full_dirs`.
**-h** or **--help**
Displays help about using this command.
Examples
--------
::
>_ cd ~/
>_ echo $PWD
/home/alfa
>_ prompt_pwd
~
>_ cd /tmp/banana/sausage/with/mustard
>_ prompt_pwd
/t/b/s/w/mustard
>_ set -g fish_prompt_pwd_dir_length 3
>_ prompt_pwd
/tmp/ban/sau/wit/mustard
>_ prompt_pwd --full-length-dirs=2 --dir-length=1
/t/b/s/with/mustard
>_ echo (prompt_pwd | string split /)[-1]
mustard
>_ echo (string join / (prompt_pwd | string split /)[-3..-1])
s/with/mustard