Hi Perl monks I have an issue. I have a command to be executed on remote server. I am using Net::Telnet module to connect to remote server. But the command output is not getting captured, not sure why. Can you please help me -
command to be executed - "show isis neighbors"
The code is -

#!/usr/bin/perl
use strict;
use warnings;
use DBI;
use Switch;

use Net::Telnet();

my $file = $ARGV[0] or die "Need to get CSV file on the command line\n
+"; #reading the hostname, IP address and credentials in a csv file gi
+ven as an argument
my $sum = 0;
my ($host,$hostname,$username, $passwd, $Eleprompt,$t,$string,$match,$
+output,@output);
open(my $data, '<', $file) or die "Could not open '$file' $!\n";
my $i=1;
while(my $line = <$data>)
{
        chomp $line;
        my @fields = split "," , $line;
        $host = $fields[0];
        $hostname = $fields[1];
        $username = $fields[2];
        $passwd = $fields[3];
        $Eleprompt = $fields[4];
        print "IP of device $i = $host\n";
        print "Hostname of device $i = $hostname\n";
        print "Username of device $i = $username\n";
        print "password of device $i = $passwd\n";
        print "login prompt of device $i = $Eleprompt\n";

        eval
        {
                if($t = new Net::Telnet (Timeout => 20, Prompt => $Ele
+prompt))
                {
                        print "Got the expected prompt for $hostname\n
+";
                }
                print "connection status = $t\n";
                $t->open($host);
                my $CS = $t->login($username, $passwd);
                print "login status = $CS\n";
                $string = "show isis neighbors";
                $match = $Eleprompt;
                @output = $t->cmd("admin show environment leds");     
+              #String   => $string,Prompt  => $match);
                print "output is = @output\n";
                @output = $t->cmd("show running-config lpts punt exces
+sive-flow-trap");                   #String   => $string,Prompt  => $
+match);
                print "output is = @output\n";
                @output = $t->cmd(String   => $string,Prompt  => $matc
+h,Errmode => die);                   #String   => $string,Prompt  => 
+$match);
                print "output is = @output\n";
        };
[download]

Sample output of the command -
RP/0/RP0/CPU0:BLR-WFD-MPL-COR-RTR-42-237#show isis neighbors
Fri Feb 23 11:22:50.269 IST

IS-IS IGP neighbors:
System Id Interface SNPA State Holdtime Type IETF-NSF

IS-IS CORE neighbors: System Id Interface SNPA State Holdtime Type IETF-NSF BPL-CPT-MPL-COR-RTR-42-241 BE4 *PtoP* Up 27 L2 Capable BLR-MPL-LTE-PE-RTR-211 BE8 *PtoP* Up 26 L2 Capable BLR-MPL-LTE-PE-RTR-211 BE70 *PtoP* Up 29 L2 Capable BLR-MPL-LTE-PE-RTR-211 BE71 *PtoP* Up 22 L2 Capable BLR-MPL-LTE-PE-RTR-211 BE12 *PtoP* Up 23 L2 Capable BLR-WFD-MPL-COR-RTR-42-236 BE1 *PtoP* Up 23 L2 Capable NDL-OKH-MPL-COR-RTR-42-206 BE2 *PtoP* Up 21 L2 Capable BLL-MPL-LTE-PE-RTR-42-55 BE9 *PtoP* Up 22 L2 Capable

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