In a while loop, $month keeps being set to things like jan or October. And I want these to become 01 and 10 respectively. Right now, I have 12 regular expressions—one for each month individually:

$month =~ s/jan.*/01/i;
$month =~ s/feb.*/02/i;
$month =~ s/mar.*/03/i;
$month =~ s/apr.*/04/i;
$month =~ s/may.*/05/i;
$month =~ s/jun.*/06/i;
$month =~ s/jul.*/07/i;
$month =~ s/aug.*/08/i;
$month =~ s/sep.*/09/i;
$month =~ s/oct.*/10/i;
$month =~ s/nov.*/11/i;
$month =~ s/dec.*/12/i;

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Is there a shorter or more efficient way to write this? Perhaps in one line?Just wonderin'.

In reply to Quick search-and-replace month names for numbers by kangaroobin

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