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39 lines
650 B
ReStructuredText
39 lines
650 B
ReStructuredText
.. _cmd-not:
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not - negate the exit status of a job
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=====================================
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Synopsis
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--------
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.. synopsis::
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not COMMAND [OPTIONS ...]
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! COMMAND [OPTIONS ...]
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Description
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-----------
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``not`` negates the exit status of another command. If the exit status is zero, ``not`` returns 1. Otherwise, ``not`` returns 0.
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Some other shells only support the ``!`` alias.
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The **-h** or **--help** option displays help about using this command.
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Example
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-------
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The following code reports an error and exits if no file named spoon can be found.
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::
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if not test -f spoon
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echo There is no spoon
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exit 1
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end
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