Just move the $dir declaration up a line. 
 my $dir; # my goes here
 foreach $dir (@dir) {  # my does not go here.
    if ($File::Find::dir ne $dir)
    {
        $File::Find::prune = 1;
        return 0;
    }

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In reply to Re: Re: Re: copy files by Cabrion
in thread Global symbol $dir requires a explicit package name ? by skyler

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