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:

In reply to Re^5: error in copy folder recursively by marto
in thread error in copy folder recursively by mrityunjaynath

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