[rum-mad-adtsrv-01] # perl -v

This is perl 5, version 20, subversion 1 (v5.20.1) built for x86_64-li
+nux

Copyright 1987-2014, Larry Wall

Perl may be copied only under the terms of either the Artistic License
+ or the
GNU General Public License, which may be found in the Perl 5 source ki
+t.

Complete documentation for Perl, including FAQ lists, should be found 
+on
this system using "man perl" or "perldoc perl".  If you have access to
+ the
Internet, point your browser at http://www.perl.org/, the Perl Home Pa
+ge.


[rum-mad-adtsrv-01] # ./cpan.pl
Can't locate package CPAN::Debug for @CPAN::Shell::ISA at ./cpan.pl li
+ne 7.
Can't call method "exists" on an undefined value at /usr/lib/perl5/5.2
+0.1/CPAN/Shell.pm line 1471.
[download]

test script is:

#!/usr/bin/perl

use strict;
use warnings;

use CPAN::Shell;

CPAN::Shell->install('Image::Size');
[download]