What is the best way to sort the hash by value and printing out the top 5 results? For array, I guess you can do something like 
@count_s = sort {
     $reportn{$a} <=> $reportn{$b};
} @count_s;

foreach (@count_s[0..4]) {
    print "$_ ====> $reportn{$_}\n";
}

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But not sure about hash as below method does not work.
is it just my grammar mistake? 
foreach my $hero ( sort keys %total_o) {
   if  ($reportn_o{$hero}) {
         @reportnL = sort { $total_o{$a} <=> $total_o{$b} } values (%t
+otal_o{$hero});
   }
}

for (@reportnL[0..4]) {
  print "$_\n";
}

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In reply to sort hash by value by convenientstore

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