Here is a nice chunk of code that uses modulus to control looping: 
    my ($returnNum)        = 0;
    for my $block (@blocks) {
        printf ("%-15s ", $block);
        print "\n" unless (++$returnNum % 5);
    }
    print "\n";

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In reply to Re^2: Perl & modulus by Anonymous Monk
in thread Perl & modulus by jkva

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