************** file 1 **********************
use strict;
use Net::Telnet;
 
sub telnetConnect {
  my ( $connectionPt, $hostName ) = @_;
  $connectionPt = Net::Telnet -> new ( Timeout=>6000, Prompt => '/#/');
  $connectionPt -> open( $hostName );
  $connectionPt -> login ( "root", "password" );
  return $connectionPt;
};
 
sub telnetDisconnect {
        $$_[0] -> close;
};
 
sub xc {
        my ( $connectionPt, $cmd ) = @_;
        print "Command: $cmd\n";
        $connectionPt -> cmd( "$cmd" );
};
 
************ main file ***********************
require("../lib/connection.pl") or die "ERROR: cannot open host information file\n";
 
my $production = "sqa-e450-1";
my $appliance = "sqa-e450-2";
 
$pro = telnetConnect( $pro, $production );
$app = telnetConnect( $app, $appliance );
 
my $cmd = "uname -a";
 
@output = xc( $pro, $cmd );
print "  Output1: @output\n";
 
telnetDisconnect( \$pro );
 
********** output *************************
$ perl Perl1.pl
Command: uname -a
  Output1: SunOS sqa-e450-1 5.8 Generic_117350-02 sun4u sparc SUNW,Ultra-4
Can't call method "close" on an undefined value at ../lib/connection.pl line 45.