Using telnet in script to exec commands

[StickyBit]

Hi folks,

Is it possible to write a script that will send commands to my cisco router from my solaris box using telnet? Something like this.

!#/usr/bin/sh

telnet router<<EOF
passwd
en
passwd
config t
interface eth0
shutdown
EOF

Am I thinking correctly, or am I off key here? How would I accomplish the task?

StickyBit.

 

[MikeLacey]

Hi there,

You will need something like 'expect' if you want to give commands via telnet.

If you're familiar with Perl, or even if you're not but are willing to give it a go, there's a utility module called Net::Telnet which will do what you need. I wouldn't be able to help you with 'expect', the traditional way of doing something like this, but I have used Perl before. Mike
michael.j.lacey@ntlworld.com
Email welcome if you're in a hurry or something -- but post in tek-tips as well please, and I will post my reply here as well.

 

[pcunix]

You can also use Kermit to do these kinds of things- a little easier than Expect though not necessarily as powerful.

http://www.columbia.edu/kermit/

Tony Lawrence
SCO Unix/Linux Resources

http://pcunix.com

tony@pcunix.com