UNIX for Dummies Questions & Answers

Hi Gurus,

I am trying to write a script for checking the status of linux servers by connecting via telnet with port no but to terminate i have to manually type "quit" .how can i terminate the telnet session in script itself.For E.g
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Code:

 telnet ipaddress portno [in this case 25]
Trying 216.82.253.227...
Connected to ipaddress
Escape character is '\377'.
220 server-9.tower-170.messagelabs.com ESMTP
quit <<<< (Manually entered quit)
221 server-9.tower-170.messagelabs.com
Connection closed by foreign host.

The above is one of the example how can i make it same thing to go in script
Please help me Gurus am new to scripting

Moderator's Comments:

Video tutorial on how to use code tags in The UNIX and Linux Forums.

You can try redirecting /dev/null into it. telnet hostname port </dev/null

It should connect, try and read input from /dev/null, get EOF, and quit.

telnet may not really be the tool for the job here, however! It's an interactive program and very difficult to automate. netcat (nc) would be better suited if you can get it, it's designed to be noninteractive from the first.

Thanks Corona ,Will try your suggestion

Thanks a ton Corona ,it worked