#!/usr/bin/perl
use warnings;
use strict;

use List::Util qw(sum);

# Grab text files from archive directory with glob function
@ARGV = glob '/export/home/date_file*';

my %counts = (
    AB => 0,
    AC => 0,
    AD => 0,
    AE => 0,
    FG => 0,
    );

while ( my $line = <> ) {
    my $var = substr $line, 41, 2;
    $counts{ $var }++ if exists $counts{ $var };
    }

my $sum = sum values %counts;

for my $type ( keys %counts ) {
    print "$type\t: $counts{$type}\n";
    }

print "Total     \t: $sum";