fish-shell/doc_src/cmds/or.rst

.. _cmd-or:

or - conditionally execute a command
====================================

Synopsis
--------

::

    COMMAND1; or COMMAND2

Description
-----------

``or`` is used to execute a command if the previous command was not successful (returned a status of something other than 0).

``or`` statements may be used as part of the condition in an :ref:`and <cmd-if>` or :ref:`while <cmd-while>` block.

``or`` does not change the current exit status itself, but the command it runs most likely will. The exit status of the last foreground command to exit can always be accessed using the :ref:`$status <variables-status>` variable.

Example
-------

The following code runs the ``make`` command to build a program. If the build succeeds, the program is installed. If either step fails, ``make clean`` is run, which removes the files created by the build process.

::

    make; and make install; or make clean

See Also
--------

- :ref:`and <cmd-and>` command
docs: Add labels to all commands This allows us to use :ref: references, which don't require hardcoding it as html [ci skip] 2019-03-31 17:05:09 +08:00			`.. _cmd-or:`

Switch command docs from \section to reStructuredText 2018-12-17 09:39:33 +08:00			`or - conditionally execute a command`
Fix command section separator line lengths 2019-01-03 12:10:47 +08:00			`====================================`
Switch command docs from \section to reStructuredText 2018-12-17 09:39:33 +08:00
Migrate the 'synopsis' sections to .rst format 2018-12-18 09:58:24 +08:00			`Synopsis`
			`--------`
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
docs: update all command synopsis formatting Adds synopses for those commands missing them. Moves all synopsis sections to code blocks. This improves the appearance, although highlighting as fish code may not be the ideal appearance. 2019-09-17 17:59:04 +08:00			`::`
Migrate the 'synopsis' sections to .rst format 2018-12-18 09:58:24 +08:00
docs: update all command synopsis formatting Adds synopses for those commands missing them. Moves all synopsis sections to code blocks. This improves the appearance, although highlighting as fish code may not be the ideal appearance. 2019-09-17 17:59:04 +08:00			`COMMAND1; or COMMAND2`
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
Convert \\subsection sections into rst format 2018-12-19 10:44:30 +08:00			`Description`
Fix command section separator line lengths 2019-01-03 12:10:47 +08:00			`-----------`
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
Switch backticks to double backticks for rst compatibility 2018-12-20 04:02:45 +08:00			``or`` is used to execute a command if the previous command was not successful (returned a status of something other than 0).
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
doc: add interlinks between `true` ←→ `false` and `and` ←→ `or` cmds 2020-02-23 19:41:18 +08:00			``or`` statements may be used as part of the condition in an :ref:`and <cmd-if>` or :ref:`while <cmd-while>` block.
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
docs: Fix remaining references Fixes #5775. 2019-03-31 17:32:40 +08:00			``or`` does not change the current exit status itself, but the command it runs most likely will. The exit status of the last foreground command to exit can always be accessed using the :ref:`$status <variables-status>` variable.
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
Convert \\subsection sections into rst format 2018-12-19 10:44:30 +08:00			`Example`
Fix command section separator line lengths 2019-01-03 12:10:47 +08:00			`-------`
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
Switch backticks to double backticks for rst compatibility 2018-12-20 04:02:45 +08:00			The following code runs the ``make`` command to build a program. If the build succeeds, the program is installed. If either step fails, ``make clean`` is run, which removes the files created by the build process.
Copy doc_src to sphinx_doc_src and add a TOC 2018-12-17 05:08:41 +08:00
Switch \fish sections to rst format 2018-12-19 11:14:04 +08:00			`::`

			`make; and make install; or make clean`

doc: add interlinks between `true` ←→ `false` and `and` ←→ `or` cmds 2020-02-23 19:41:18 +08:00			`See Also`
			`--------`

			- :ref:`and <cmd-and>` command