Assuming you have your counts in a hash, say %code_count (with code as the keys), then 

use strict;
use warnings;

my %code_count = (
                  a => 5,
                  b => 4,
                  c =>10,
                  d => 1,
                  e => 2,
                  f => 17,
                 );

print "$_ $code_count{$_}\n"
    for (sort { $code_count{$b} <=> $code_count{$a} } keys %code_count
+ )[0..4];
__DATA__
f 17
c 10
a 5
b 4
e 2

[download]
will work. This sorts the hash by value (in largest-first order), and uses a slice to pull off the top five.

Updated: Added sample data and output.

In reply to Re: Counting events and getting top 5 matches by broomduster
in thread Counting events and getting top 5 matches by iphony

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