That will break if any of the elements have spaces in them. Probably not very likely, but a safer way to write a GRT is: 
my @sorted = map{(split(/\0/))[1]}
             sort
             map{sprintf"%09d%09d%s%s\0%s",(split/\./)[0..3],$_}
             @lines;

[download]

-Blake

In reply to Re2: Sorting @lines by blakem
in thread Sorting @lines by kanabrian

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