While you're at it, another "Best Practice" is to check "open" returns for failure, to avoid mysterious bugs : 
open my $PREF,     '<',  $pref or die "Awwww, can't open $pref: $?";

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In reply to Re^5: Random Desktop Background for IceWM by wazoox
in thread Random Desktop Background for IceWM by Texadan

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