#!/usr/bin/perl -w

use strict;

my $remotefile = '/tmp/yourfile.conf';

my $remotestat = qx!
      ssh -2 -p 12345 172.16.16.82  'perl -e "print ((stat(qq~$remotefile~))[9])" '
                   !;

print "\n$remotestat \n";
print "\n", scalar localtime($remotestat), "\n\n";