Hi,

I'm sure this question has been asked before, but I can't seem to find an answer using super search...

I have a file which is 22 columns delimited by a tab. I want to sort it first by column 9, then by column 22. I'm not sure how to proceed in modifying the Schwartzian transform to accomplish this. This is what I have, but it doesn't seem to be working: 

@sortedarry = 
   map { $_ ->[0] }
   sort { $a->2 <=> $b->2 }
   sort { $a->[1] cmp $b->[1] }
   map {
          my @cols = split /\t/;
          [$_, $cols[9], $cols[22] ];
} @foo;

print "$_\n" foreach @sortedarry;

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In reply to schwartzian transform and sorting on two columns by indapa

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