use warnings;
use strict;
use Net::SSH2;
use Net::SSH2::Expect;

my $ssh2 = Net::SSH2->new();
$ssh2->connect('192.168.XX.XXX') or die "Unable to connect Host $@ \n";
#this works for passwords 
$ssh2->auth_password('root','root') or die "Unable to login $@ \n";


my @array = ('whoami','su root', 'whoami');

foreach (@array){
	my $chan = $ssh2->channel();
	$chan->exec($_);
	my $buflen = 3000;
	my $buf1 = '0' x $buflen;
	$chan->read($buf1, $buflen);
	print "CMD1:\n", $buf1,"\n";
}