For syntax, though not efficiency, try: 
sub step {
    my $step = shift;
    return grep {($_ - $_[0]) % $step == 0} @_
}

foreach (step 5, 2 .. 100) {
  print "$_ "
}

[download]
which prints: 
2 7 12 17 22 27 32 37 42 47 52 57 62 67 72 77 82 87 92 97

[download]

In reply to Re: foreach .. stepping? by Dr. Mu
in thread foreach .. stepping? by meetn2veg

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