Change the same configuration command on multiple Cisco switches

Q: Are there any simple tools and methods? Do a script, automatically execute on a script in N-around Cisco switches, and then return the results?

Method One, the switch configuration file download, modified and uploaded to the n-switch. Then restart or copy start run.

Method Two, under Windows to build a bat file, the contents and you telnet to the switch to modify the command used when the same, but the IP address needs the n times, more trouble. Then run the bat file.

Method Three, use Ciscoworks 2000 to configure once to fix, this method has certain restrictions, such as the first in each switch to the use of SNMP, if it is a newly enabled switch, or not with SNMP (certainly not), if each switch password is not the same, or can not be configured.

Method Four, write a small script in Perl, although it will take a day or a while for beginners. But it's definitely worth it.

#!/usr/bin/perl
Use strict;
Use Net::telnet::cisco;
My $infile = "input.txt"; # Cisco Device List
My $username = "user"; # login Username
My $passwd = "password"; # login Password
Open (INFILE, "$infile") | | Die "Can ' t open $infile $!";
while (my $ip =<infile>) {
Chomp $ip;
My $t = net::telnet::cisco->new (Timeout =>, Input_log => "Input.log");
$t->open ($IP);
$t->login ($username, $passwd);
$t->enable ($PASSWD);
$t->cmd (' term length 0 ');
$t->cmd (' sh ver '); # can change the command sh ver to your command
$t->close;
}
Close INFILE;