Greetings, and thank you very much for your reply.
Yes, I can elaborate. :)
Firstly, I'm not very good at this. But after many fails, this was the best I could conceive:
my $listing = $ENV{CWD};
While it did give me Current Working Directory.
Perl(1) was (rightfully) unhappy with my choice
( Insecure $ENV{PATH} while running with -T switch ).

Why do I care about CWD||PWD? Because my script will live in /cgi-bin/, or @INC.
I need to include it where ever I call it from
eg; <!--#exec cgi="/cgi-bin/filelist.pl" -->.
I've looked at other modules that would dump/list the contents of folders -- File::Listing, for example.
But given that none of them offered the ability to alternate td/div background colors for readability,
and that there are thousands of, ahem... PHP scripts that do this. I thought this might be a worthy endevour -- god knows I need the practice! :)

#!/usr/bin/perl -Tw

use strict;
use perl::always;

my $perl_version( 5.12.4 );

print $perl_version;