print "Device list containte in the device.list file will be a CSV file\n\n";
print "The device.list file will consist of only the device OS and category \n";
print "This script works on CISCO routers.\n\n";

print "Enter username:\n";
$username = <STDIN>;
chomp $username;
print "Enter password:\n";
$password = <STDIN>;
chomp $password;
print "Enter the command you want issued:\n";
$cmd = <STDIN> ;
chomp $cmd;
print "Enter the string you want to search for:\n";
$string = <STDIN>;
chomp $string;
print "\n\n\n";
#print "password is -$password-\n";
#print "username is -$username-\n";
#print "command is -$cmd-\n";
#print "search string is: -$string-\n";
use Net::Telnet::Cisco;
open (DEVICE, 'device.list');
while (<DEVICE>) {
chomp;
$routerIP = $_;
print "Router IP is $routerIP,";
my $session = Net::Telnet::Cisco->new(Host => "$routerIP", Input_log=>"input.log", 
);
$session->login("$username", "$password");
my @output = $session->cmd("$cmd");

for $_ (@output) { #BRACKET A
my $statline = $_;
chomp $statline;
if ($statline =~ /($string)/) { #Bracket B
print "$statline";
} # end Bracket B
}
print "\n";

}
exit;