You don't seem to be far off, but I hope you didn't fall into the trap of trying to sort the hash itself. Hashes can't be sorted, but arrays or lists made from their keys.

foreach $batch ( keys %{$hash{$host}} ) {
   my @runs= keys %{$hash{$host}{$batch};
   @runs= sort { $hash{$host}{$batch}{$a}{start} <=> $hash{$host}{$bat
+ch}{$b}{start} } @runs;
   foreach $run (@runs) {
      ...

[download]

Naturally you can compress this into one line and remove the need for @runs, but I wanted to show explicitly what I was doing

Oh and it is untested. Wouldn't suprise me if I had made a silly mistake somewhere

In reply to Re: Sorting hash of hash of hash by values by jethro
in thread Sorting hash of hash of hash by values by legendx

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