Split columns according header delimiter,
http://learn.perl.org/faq/perlfaq4.html#How-do-I-sort-an-array-by-anything-, http://perldoc.perl.org/perlfaq4.html#How-do-I-sort-an-array-by-%28anything%29%3f
Understanding the Schwartzian transform., Re: Sorting a HoH by values of the nested hashes, Path::Tiny
In reply to Re: Sorting using the highest last column criteria
by Anonymous Monk
in thread Sorting using the highest last column criteria
by deepakshyl
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