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Well, I'll give this problem a go even though it has been beaten to death already. It's a bit long, but it works all the same.

use strict; my %files; my @files; @files =<DATA>; @files = map { s/\n//; $_ } @files; close(DATA); foreach (@files) { $files{substr($_,0,(length()-4))}++; } foreach (keys %files) { print "$_ is not matched and has a count of $files{$_}\n" if $file +s{$_} == 1; } __DATA__ 001.did 001.mrg 002.did 002.mrg 003.did 004.did 005.did 005.mrg
The output of this is:

003 is not matched and has a count of 1
004 is not matched and has a count of 1

Of course, this code is nothing more than a modified "seen" loop. Not too fancy. One thing I should point out is that if you use  foreach (<*.mrg>), it'll do the same thing as your glob (because it is the same thing as far as I know). It's just shorter. Hope that sparks a few ideas.

Theodore Charles III
Network Administrator
Los Angeles Senior High
perl -e "map{print++$_}split//,Mdbnr;"

In reply to Re: Finding un-paired files in a directory by Necos
in thread Finding un-paired files in a directory by inman

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