fish-shell/doc_src/cmds/not.rst

35 lines
489 B
ReStructuredText
Raw Normal View History

.. _cmd-not:
not - negate the exit status of a job
=====================================
Synopsis
--------
::
not COMMAND [OPTIONS...]
Description
-----------
``not`` negates the exit status of another command. If the exit status is zero, ``not`` returns 1. Otherwise, ``not`` returns 0.
Example
-------
The following code reports an error and exits if no file named spoon can be found.
2018-12-19 11:14:04 +08:00
::
if not test -f spoon
echo There is no spoon
exit 1
end