$VAR1 = {
    'host' => {
             'batch' => {
                    'run1' => {
                            'jobs' => {
                                 'Job name 1' => {
                                                 'duration' => '16',
                                                 'end' => '2011/07/01 
+23:50:36',
                                                 'start' => '2011/07/0
+1 23:50:19'
                                               },
                                 'Job name 2' => {
                                                  'duration' => '22',
                                                  'end' => '2011/07/02
+ 05:22:29',
                                                  'start' => '2011/07/
+02 05:22:06'
                                                },
                                    },
                            'duration' => '25'
                            'end' => '2011/07/02 05:22:29',
                            'start' => '2011/07/02 05:22:06'
                            },
                            
                    'run2' => {
                            'jobs' => {
                                 'Job name 1' => {
                                                 'duration' => '16',
                                                 'end' => '2011/07/01 
+23:50:36',
                                                 'start' => '2011/07/0
+1 23:50:19'
                                                },
                                 'Job name 2' => {
                                                  'duration' => '22',
                                                  'end' => '2011/07/02
+ 05:22:29',
                                                  'start' => '2011/07/
+02 05:22:06'
                                                },
                                    },
                            'duration' => '25'
                            'end' => '2011/07/02 05:22:29',
                            'start' => '2011/07/02 05:22:06'        
                               },
                       },
                 },
        };

[download]
Hash is layed out like this: 
%Hash -> $host -> $batch -> $run -> 'jobs'      -> $jobname -> 'durati
+on'
                                 -> 'duration'             -> 'end'
                                 -> 'start'                 -> 'start'
                                 -> 'end'

[download]

Problem:
I would like to sort the hash by values such as:
- $Hash->{$cluster}->{$host}->{$batch}->{'start'}
- $Hash->{$cluster}->{$host}->{$batch}->{'jobs'}->{$jobname}->{'start'}
Therefore sorting by the 'start' values of the batch and jobs 

foreach $host ( keys %hash )
{
    foreach $batch ( keys %{$hash{$host}} )
    {
        foreach $run ( keys %{$hash{$host}{$batch}} )
        {
            
            #print $hash{$host}{$batch}{$run}{'duration'}, "\n";
            print $hash{$host}{$batch}{$run}{'start'}, "\n";  #How do 
+I sort by this?
            #print $hash{$host}{$batch}{$run}{'end'}, "\n";
            
            foreach $job ( keys %{$hash{$host}{$batch}{$run}{'jobs'} )
            {
                print $hash{$host}{$batch}{$run}{'jobs'}{$job}{'start'
+}, "\n"; #How do I sort by this?
            }
        }
    }
}

[download]

I have tried using the sort { hash{cluster}{host}{batch}{$a}->{duration} <=> hash{cluster}{host}{batch}{$b}->{duration} } but it did not produce expected results. I also tried other variations I found online and searching through here.

Hoping someone could point me in the right direction, please!

In reply to Sorting hash of hash of hash by values by legendx

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