not(1)

NAME

not - negate the exit status of a job

SYNOPSIS

not COMMAND [OPTIONS ...]
! COMMAND [OPTIONS ...]

DESCRIPTION

not negates the exit status of another command. If the exit status is zero, not returns 1. Otherwise, not returns 0.

Some other shells only support the ! alias.

The -h or --help option displays help about using this command.

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

Copyright

fish-shell developers