#!/usr/bin/env perl

use strict;
use warnings;
use autodie;

my $file_to_search = 'file_to_search';
my $file_of_search_terms = 'file_of_search_terms';
my $file_of_search_counts = 'file_of_search_counts';

my %count;

{
    open my $search_terms_fh, '<', $file_of_search_terms;
    %count = map { chomp; $_ => 0 } <$search_terms_fh>;
}

my @search_terms = keys %count;

{
    open my $in_fh, '<', $file_to_search;

    while (<$in_fh>) {
        chomp;
        next if -1 == index $_, 'Z';

        for my $search_term (@search_terms) {
            next if -1 == index $_, $search_term;
            ++$count{$search_term};
            last;
        }
    }
}

{
    open my $out_fh, '>', $file_of_search_counts;
    print $out_fh "$_ : $count{$_}\n" for sort @search_terms;
}