From perlop...

       As more readable alternatives to "&&" and "||" when used
       for control flow, Perl provides "and" and "or" operators
       (see below).  The short-circuit behavior is identical.
       The precedence of "and" and "or" is much lower, however,
       so that you can safely use them after a list operator
       without the need for parentheses:

           unlink "alpha", "beta", "gamma"
                   or gripe(), next LINE;

       With the C-style operators that would have been written
       like this:

           unlink("alpha", "beta", "gamma")
                   || (gripe(), next LINE);

       Using "or" for assignment is unlikely to do what you want;
       see below.
[download]

_______________
DamnDirtyApe

Those who know that they are profound strive for clarity. Those who
would like to seem profound to the crowd strive for obscurity.
            --Friedrich Nietzsche