while ($sequence =~ /$substring/g) { $count++ }

[download]
You never learned how to add numbers without using your fingers? ;-)

I don't understand the urge to count one-by-one -- and you're not the first poster in this thread to do so. 

while (<FILE>) {
    $count += () = /$substring/g;
}

[download]
ought to do it.

In reply to Re^2: stupid/simple mistake by JavaFan
in thread stupid/simple mistake by gogoglou

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