#!/usr/bin/perl
use strict;
use warnings;
use Net::SSH2;
use File::Remote;

my $user = '';
my $pass ="";
#my $cmd = "ls";


my %host; 
$host{'portaltest'} = "";
$host{'opatest'} = "";

eval{

foreach my $key (keys(%host)){
my $ssh = Net::SSH2->new();
	$ssh->connect($host{$key});
    $ssh->auth_password($user, $pass) or die "not able to login\n";
    print "password authenticated\n" if ($ssh->auth_ok());
	
my $chan = $ssh->channel();
	$chan->blocking(0);
        $chan->shell();
	$chan->write("ls");
	print "ls command executed\n";
	select(undef,undef,undef,0.2);
	my $buf;
    print $buf while defined (my $len = $chan->read($buf,512));
	# print "ls printing\n";
	$chan->close();
	
	}
	
};

warn $@ if $@;