The following sorts numerically by the number preceeding the 'x', then numerically by the number following the 'x': 

@a = sort { my ($a1, $a2) = split(/x/, $a);
            my ($b1, $b2) = split(/x/, $b);
            $a1 <=> $b1 || $a2 <=> $b2      } @a;

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In reply to Re: how to sort this? by ikegami
in thread how to sort this? by sen

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