Erm, why not just use an ST and do the matching once and not worry about clobbering $1 et al. More efficient to boot. 

my @result = map { $_->[0] }
                      sort { $a->[1] <=> $b->[1] }
                      map { /_(\d{2})_/; [ $_, $1 ] } @f;

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In reply to Re: Regular expressions and sort by Fletch
in thread Regular expressions and sort by zaro

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