Good day nayabrahil

As far as I know, the DIR command does not support UNC file paths. You will most likely need to map that path to a drive letter on your machine.

Alternatively I located a library that seems to work by mapping the UNC path to a temporary location.

use strict;
use warnings;
use File::pushd;

my $TEMP_DIR_OF_UNC = pushd( '\\AX-RISCVMCRYS02\C$\CALC' );
print "Temporary mapping of UNC path is : $TEMP_DIR_OF_UNC\n";
system('DIR '.$TEMP_DIR_OF_UNC);
[download]

I suggest reading over the manual page for the Pushd library. There are some usage gotcha's in there.

http://search.cpan.org/~dagolden/File-pushd-1.006/lib/File/pushd.pm

I hope this helps.