Hi Marshall,

Thank you for your detailed response very well explained. As you can tell i'm quite new to this so I will work on my indenting to make my code clearer in the future. Just for my understanding... is there a difference betwen a hash and a 2D array or is a hash table more efficient? Also for the compare part I want to compare the files as you described in the last part of your answer. Would something like this be on the right lines?

my $found = 0;
foreach my $key1 (keys %hash1) {
foreach my $key2 (keys %hash2) {
if ($hash1{$key1} eq $hash2{$key2})

{
$found=1;
}
print "$found";
}
}

In reply to Re^2: Global variables question by PerlScholar
in thread Global variables question by PerlScholar

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