You're on the right track with File::Copy::Recursive. Take another look at the documentation, here's a short example to get you started:

#!/usr/bin/perl

use strict;
use warnings;
use File::Copy::Recursive qw(dircopy);

my $source = "d://source";
my $target = "d://target";

my $filecopied = dircopy($source, $target);
print "files copied: $filecopied";
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If you are new to perl the following links will likely be of interest:

• http://learn.perl.org, with first steps
• The documentation
• Tutorials->Getting Started with Perl
• Modern Perl (see also perl.org/library)