I have 100 servers which need a new backup server added to a text file, and then the backup agent restarted.

[cmdrrickhunter@yaho.com]

I would sugest looking at http://pexpect.sourceforge.net/  The Expect
metalanguage was specifically designed for the kind of things you are
trying to do.  I used it recently on a project to configure 25
instances of an application, remotly, half over ssh half over telnet.