Thanks for the quick reply

Here is the full logic. 

$session = Net::SSH2->new();
$rc = $session->connect($target_ip, $target_port, Timeout=>4000) ;

$session->auth_password($username, $passwd) ;

$chan = $session->channel();

$chan->shell() ;
print $chan $cmd . " \n" ;


my @poll = ({handle=>$chan, events=>['in', 'ext', 'channel_closed']});

my $job_done = 1;
my $status;

while ($job_done > 0)
{
$session->blocking(0) ;
$session->poll(1, \@poll) ;
        
        if ($poll[0]->{revents}->{in}) {
            while (<$chan>) {
             $resp  .= $_ ;
            }
            $status = 0 ;
            if ($chan->eof()) {
                $status = $chan->exit_status() ;
            }
        }
        
        if ($poll[0]->{revents}->{ext}) {
            my ($len, $buff) ;
            while ($len = $chan->read($buff, 1024, 1)) {
                $resp .= $buff ;
            }
            if (! $resp) {
                $status = $chan->exit_status() || 0 ;
            }
        }
        elsif ($poll[0]->{revents}->{channel_closed}) {
            while (<$chan>) {
                $resp .= $_ ;
            }
            $status = $chan->exit_status() ;
        }
        if ($chan->eof() || 
            $poll[0]->{revents}->{ext} || 
            ($poll[0]->{revents}->{channel_closed} && $status == 0)) {
            
            $chan->close ;
            $job_done = -1;
        }
$session->blocking(1) ;

}
        
print "\nresponse : $resp";

[download]

The problem here is, commands that take more than 5 seconds to respond returns null. Whereas, commands that takes less time to respond are returning the exact result

This is where sleep comes into picture for me

Please help.

In reply to Re^2: Net::SSH2 channel returns no output by rama133101
in thread Net::SSH2 channel returns no output by rama133101

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