This documents an old version of fish. See the latest release.

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.

if not test -f spoon
    echo There is no spoon
    exit 1
end