I tried the first paragraph of code

use strict;
use warnings;

my $directory = shift;
print "dir=$directory\n";   # just for debug
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I got this error use of uninitilised value $directory in concatenation (.)or string at.......... sayingline 6 fault in code, but dont know why... bah this stuff confuses me Do I add the code you posted to the code I already have or is it stand alone? If so, what did you mean by run my file as the second bit of code?