Batch Telnet

This is probably a little far-fetched. Is there a way to do a batch telnet? In other words, from an NT command line, telent in, and run a compile command (gcc)?

There are other reasons that I want to do this, such as gather stats from multiple servers, shutdown services on multiple services from one script, etc.

Thanks for any advice.

Use SSH. It's secure (more or less and there are also clients for Windows (ask Google for 'putty'.

Regards,

Yes indeed, I strongly recommend that you use SSH and /not/ Telnet. It's unwise to have a Telnet server anywhere nearby. Someone's bound to use it, and a sniffer is sure to find a password that way. (It only takes one!)

well... I guess you could put cygwin on the NT box and use 'expect' to do the work of replacing the hands and mind at the keyboard.

On the other hand, if you put the startup into a shell script file on the Linux end and called it from the .profile then things would probably be more stable, etc.

and unless you are on a LAN segment that you know is secure, you might want to use SSH instead of telnet.

And you might want to put enough stuff into a Makefile that all the command needs to do is run make.

It is a pretty secure network and I am not goingto immediately worry about security.

I can't seem to find the syntax anywhere. If someone could post a simple example, I'd be grateful.

Which command can't you find an example of? This problem has arisen because you are top-posting, which always scrambles Usenet communications.

Example for ssh:

# ssh (machine-name) (command)

Specific:

# ssh client-machine wall HELLO!

This exmaple works best if you have published access keys to the client machine, because no authentication is required. Read about this in 'man ssh'.

There is no similarly simple example for Telnet. I recommend ssh for two

: : I can't seem to find the syntax anywhere. If someone could post a : simple example, I'd be grateful. : For Kermit you can find numerous example scripts here:
http://www.columbia.edu/kermit/ckscripts.html

For example:
ftp://kermit.columbia.edu/kermit/scripts/c-kermit/ autotelnet

- Frank

Look at the weather application that comes with expect. It will work anywhere where expect works.

C-Kermit includes a scripting language and can speak telnet.

NT? Erhm... no idea. If you can use a linux box, look at the telnet man page for the .netrc syntax. You can automate telnet and ftp that way.

An interesting hack that works on *nix (dunno about NT's telnet) is:

echo 'o mail.example.com 25 HELO client.example.com

DATA Subject: I quit

I quit. .' > commands telnet < commands

You can use telnet script'd that way. Or use expect.

I think some Windows telnet clients have a scripting capability, so check those out if you can't use *nix instead.