use Net::Cisco;
my $t =Net::Telnet::Cisco->new(Host=>'10.0.0.1');
my @output;
my $tl=0;
$t->login('9190','KUM@R425');
$t->print('telnet 192.168.203.23')or $tl=1;
$t->waitfor('/Please enter password: /');
$t->print('public');
$t->waitfor('/]> /');
@output=$t->cmd("show system");
print @output;
$t->waitfor('/]> /');
$t->print('exit');
open(CONFIG,">config.txt");
print CONFIG "@output\n"; 
close(CONFIG);
$t->close;