#!/usr/bin/perl my $minrt = 1e100; my $min; while (<>) { # [h:]m:s.xx U.xx S.xx /^(?:(\d+):)?(\d+):(\d+(?:\.\d+)?) (\d+(?:\.\d+)?) (\d+(?:\.\d+)?)$/ or die "bad input line: $_"; my $rt = ((defined $1 ? $1 : 0.0)*60+$2)*60+$3; if ($rt < $minrt) { $min = $_; $minrt = $rt; } } if (!defined $min) { die "no input found"; } print $min;