Hey thanks! that worked. I was able to sort by the $batch 'duration' values
I was using  sort { $hash{$host}{$batch}{$run}{$a}{start} <=> $hash{$host}{$batch}{$run}{$b}{start} } instead and it wasn't working.

Why does hash{$host}{$batch}{$a}{start} <=> $hash{$host}{$batch}{$b}{start} work when I am not specifying the $run? Is it because Perl puts the two elements it wants to compare (which is the $run) into the special variables $a and $b?

In reply to Re^2: Sorting hash of hash of hash by values by legendx
in thread Sorting hash of hash of hash by values by legendx

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