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Full Discussion: telnet in a script
Top Forums UNIX for Dummies Questions & Answers telnet in a script Post 580 by Neo on Friday 15th of December 2000 11:32:07 AM
Old 12-15-2000
I don't have an example handy, but as I recall the working construct is based on this form of code fragment:

Code:
while {

#put conditional logic here

} telnet 111.222.333.444


I once wrote a script that automatically 'telnetted' into hundreds of Cisco routers and changed the passwords when an employee was terminated. This was about 7 years ago and my memory on the actual code is foggy. I do remember that we used KSH and used a contruct like the one above.

I suggest you get out your best shell programming book and use the construct above in the correct syntax. For example, I don't recall if you use a pipe "|" or perhaps a "<" redirection tag to send the telnet output to the while logic block. You would have to get this from studying the construct and perhaps some simple trial and error. Sorry not to remember more.

When you get it right, please post.






 

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LEARN ABOUT OSF1

telnetrc

telnetrc(4)						     Kernel Interfaces Manual						       telnetrc(4)

NAME

       telnetrc, .telnetrc - Specifies setup commands for a telnet session

SYNOPSIS

       $HOME/.telnetrc

DESCRIPTION

       The .telnetrc file contains the setup information for a telnet session.	It is a hidden file in your home directory and must be readable by
       the user logging in.

       The file can consist of multiple entries for each remote host to which a user can connect.  A remote host entry consists of multiple lines.
       The first line is the name of a remote host. The subsequent lines must begin with blank spaces, and contain telnet subcommands.	These sub-
       commands are processed as though they were typed in manually. Lines beginning with a number sign (#) are comment lines.	See telnet(1)  for
       a complete list of telnet subcommands.

       To specify subcommands that apply to all systems, create an entry, using the word "DEFAULT" as the system name, and specify the telnet sub-
       commands in the subsequent lines.

EXAMPLES

       The following shows a sample .telnetrc file:

       # Beginning of telnetrc file # Default subcommands that apply to all systems DEFAULT
	  environ undefine USER # First system entry system1
	  set echo
	  toggle crlf # Second system entry system2
	  set echo
	  mode line
	  toggle crlf

FILES

       User-customized telnet startup values.

RELATED INFORMATION

       Commands:  telnet(1).  delim off

																       telnetrc(4)
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