Do be careful with $a and $b as they are used for sort (see perlfunc). I haven't needed any complicated sorting routines yet, but I have seen a lot of nodes on this site where the difficulty is in using the special variables $a and $b.

I have a wiry brain/each eye a camera. Robot Tourist, by Ten Benson

In reply to Re: Can If-then conditions do ($a = $b = $c) type expressions? by robot_tourist
in thread Can If-then conditions do ($a = $b = $c) type expressions? by snafu

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