topic Re: Getting an ID reply from a terminal in Operating System - HP-UX

Getting an ID reply from a terminal

Bolek Mynarski — Wed, 30 Aug 2000 14:55:47 GMT

I'm not sure how to put it. We want to include into our global profile a little script that will prompt user's terminal to identify itself and upon terminal's request, greet the user with something like:

"You have logged on using VT100, or VT200, or Reflections and so on."

What we have so far is this:

echo "033[0;1234c" which prompts the terminal for ID and we know that it answers back (we have tested it on a command line).

Now, how do I capture the response and send a message back based on it?

I tried redirecting it to the file, grepping and so on but this does not work. If I try to cat that file, it simply responds back with a beep.

Any ideas?

Thanks.

Re: Getting an ID reply from a terminal

Victor BERRIDGE — Wed, 30 Aug 2000 14:59:17 GMT

Why not simply echo $TERM ?
in your .profile

Re: Getting an ID reply from a terminal

Victor BERRIDGE — Wed, 30 Aug 2000 15:02:24 GMT

This is what I do for root connections, may it inspire you:
LOG='who am i -R'
ME=$LOGNAME
(date;echo $ME;$LOG)|xargs >>/var/adm/root/.log
export ME

Re: Getting an ID reply from a terminal

John Palmer — Wed, 30 Aug 2000 15:08:02 GMT

Have you tried
echo .....
read REPLY (or any variable name)

The response from the terminal should then be in $REPLY

Re: Getting an ID reply from a terminal

Tracey — Wed, 30 Aug 2000 15:19:21 GMT

I use:

TERM=`ttytype`
export TERM
echo 'Your Term is:' $TERM

Re: Getting an ID reply from a terminal

Bolek Mynarski — Wed, 30 Aug 2000 15:46:16 GMT

I did not express myself clearly. O.K.
When I'm logged on using "Reflections" terminal, my term can be set to vt200 or whatever, and true, when I type echo $TERM, it will display vt200. However, what I want to get is this info:

when I type echo "033[0;1234c", it queries the terminal client which responds back with:

[bmynars@optivity /home/bmynars/bin]$ W02-600L333333
sh: W02-600L333333: not found.

It looks like it starts a subprocess. What I want to capture is W02-600L333333 (not type of term which would be vt200.

That's what I can't do.

Re: Getting an ID reply from a terminal

Alan Riggs — Wed, 30 Aug 2000 15:54:46 GMT

Have you tried:

CONNECTION=`echo "033[0;1234c"` (note: backtics not quotes)

echo "Your connection type is $CONNECTION"

Re: Getting an ID reply from a terminal

Bolek Mynarski — Wed, 30 Aug 2000 16:01:21 GMT

Hi Alan:

"Have you tried:

CONNECTION=`echo "033[0;1234c"` (note: backtics not quotes)

echo "Your connection type is $CONNECTION"
"

If you run "033[0;1234c" only, it will simply echo back exactly the same thing. So, if you put ""033[0;1234c" then you get response back but we're back to square one. It looks like this command opens a subshell and tries to run there. How do I capture it?

Re: Getting an ID reply from a terminal

Bolek Mynarski — Wed, 30 Aug 2000 16:02:13 GMT

I meant 033[0;1234c

Re: Getting an ID reply from a terminal

Bolek Mynarski — Wed, 30 Aug 2000 16:03:19 GMT

I noticed that my '' slashes are missing. So, there is a "backslash" in front of "033[0;1234c".

Re: Getting an ID reply from a terminal

John Palmer — Wed, 30 Aug 2000 16:04:25 GMT

Your echo statement causes the terminal emulation software to respond with configuration info (as if you had typed it in).

Simply using the 'read' command allows you to get the reply into a shell variable. See my response above.

Re: Getting an ID reply from a terminal

Bolek Mynarski — Wed, 30 Aug 2000 17:07:10 GMT

Thanks John. I don't know what I was thinking when I as trying to pipe read. :-)
That solved my problem.