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push @foo, [ split /:/ ] while <>; print map { "$_->[0]\n" } sort { $a->[2] <=> $b->[2] } @foo; # Two lines, for clarity. # Of course I could have used another map.
2;0 juerd@ouranos:~$ perl -e'undef christmas' Segmentation fault 2;139 juerd@ouranos:~$