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#!/usr/bin/perl -l ... sort { $a->[1] cmp $b->[1] } map { [$_, ( /blahblah/ ? 0 : 1 ) . $_] } <>;
( ["bat 1 blahblah", "1bat 1 blahblah"], ... ["bar 1 zot", "0bar 1 zot"], ["bar 2 zot", "0bar 2 zot"] )
#!/usr/bin/perl -l ... sort map { ( /blahblah/ ? 0 : 1 ) . $_ } <>;