I read from a delimited file and create a hash of a hash of an array.
See and that exactly is the problem :) Use an AoA and the sort will become trivial.

Update: Of course you can transform the data to an AoA first: 
my @data;

for $colour (sort keys %hash){
     for $device (sort keys %{ $hash{$colour}}){
          push @data, [ $colour, $device, $hash{$colour}{$device}[0] ]
+;
     }
}

@data = reverse sort { $a->[2] <=> $b->[2] } @data;

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holli, /regexed monk/

In reply to Re: Sorting multi-hash values by holli
in thread Sorting multi-hash values by papai

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