#!/usr/bin/env perl

use warnings;
use strict;
use IO::Zlib;
 
my $fh = IO::Zlib->new('test.txt.gz', 'rb') or die "Zlib failed: $!";
my %count;
$count{$_}++ for map { (split /\|/)[2] } <$fh>;

foreach $key(%count){
$c = $count{$key};
$c1 = $count{$key};
}