This can be done using a hash. 
#!/usr/bin/env perl

use strict;
use warnings;

open my $fh, '<', 'test_file.txt' or die 'Can not open file';

my %data;
while(<$fh>){
    chomp $_;
    my ($key, $val) = split(/\|/, $_);
    $data{$key} += $val;
}

foreach my $key ( sort { $a <=> $b } keys %data ){
    print "the total is: (".$data{$key}.")\n";
}

exit;

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In reply to Re: array of arrays by kevbot
in thread array of arrays by virtualweb

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