http://www.perlmonks.org?node_id=318211


in reply to Re^2: sorting entires by date
in thread sorting entires by date

If you have dates before and after time 1000000000 (Sept 2001), you need to use <=> instead of cmp (assuming traditional Unix epoch).

Being able to do a numeric comparison on two substrings is one of those things that makes Perl Perl.