bool :neq ( mixed $ARG , … )
bool :!= ( mixed $ARG , … )
bool :<> ( mixed $ARG , … )

Takes any number of arguments and performs a non-equals comparison. Works the same as if performing a chained call of :not :eq.

# :neq example.
:set &NUM i0
:read &NUM
!if :neq $NUM i0
    :writeln s'NUM is non-zero.'
    !fi