telnet korn shell script

[icu812]

I have a box(sp node) that intermittently, I can't telnet to
I can ping it but I cannot telnet to it. Can someone please help me come up with a korn shell script that will try to telnet to this box and send me an e-mail message if it can't? As always: Thank you very much

 

[bjverzal]

The AIX version of telnet does not exit with result codes. You'll need to do something like this:

#!/bin/ksh
host=sap80i
telnet $host 1>/tmp/file 2>&1
foo=`grep refused /tmp/file`
if [ "$?" -eq "0" ] ; then
echo "Host $host does not respond"
fi

Bill.

 

[icu812]

I've tried this script but am having problems:
1) whenever I am having problems with the server, I get "Trying..." when I try to telnet to it.

2) that same string (Trying...) is part of a successful telnet connection

3) Do you know how I can search for this string when I am having problems, if it is also showing up when I am not having problems...Am I confusing you??)

4) Also, the script hangs

Thanks for your help! I really appreciate it.

 

[bjverzal]

Let it run for a short while. It should time out. There is nothing else you can do, unless you rely on "ping" to test connections.

Bill.