topic Re: auto logout in Operating System - HP-UX

auto logout

HPquestion — Wed, 11 Feb 2009 15:45:53 GMT

Hi there,
We are calling an X-windows based application from the .profile via reflection X automatically . Once the user exit out the application , I want to logoff the shell automatically as we don't want them to get the $ prompt at all.

Tried with kill -9 $$ and some thing like
shown below. Buit the $ prompt still remain.How to logout the users automatically after he/she is done with the application?

.profile code to execute the application.

cd /home/somestuff
./run_the_application
./kill_it
--------
kill_it has the following lines

#!/bin/ksh
MYUSER=`whoami`
for MYPID in `ps -ef | grep $MYUSER | awk '{ print $(2) }' | sort -r`
do
`kill -9 $MYPID`
done

Re: auto logout

Steven Schweda — Wed, 11 Feb 2009 16:07:30 GMT

How about something like this?:

cd /home/somestuff
exec ./run_the_application

"exec" causes "./run_the_application" to
replace the shell, so when it exits, the
process should die.

HP-UX-free example:

ALP $ rsh /user = root sol
Last login: Wed Feb 11 10:04:53 from alp-l.antinode.
Sun Microsystems Inc. SunOS 5.10 Generic January 2005
You have new mail.
sol# pwd
/root
sol# exec pwd
/root

%RSH-S-REMCLOSED, Remote connection closed
ALP $

Re: auto logout

HPquestion — Wed, 11 Feb 2009 16:48:04 GMT

Thnaks! It dodn't work.

.profile with exec ./run_the_application
doesn't stopped opening/executing the application from xterm. Then
I have done the following.But its not existing out the $ prompt in the xterm.

.profile :
exec ./call_run

call_run has the following lines.
#!/usr/bin/ksh
exec ./run_the_application

Re: auto logout

HPquestion — Wed, 11 Feb 2009 16:57:51 GMT

sorry made some typos.I meant to say

.profile with exec ./run_the_application
stopped opening/executing the application itself from xterm. So I have done the following.But its not existing out the $ prompt in xterm.

.profile :
exec ./call_run

call_run has the following lines.
#!/usr/bin/ksh
exec ./run_the_application

Re: auto logout

Patrick Wallek — Wed, 11 Feb 2009 17:03:22 GMT

Just put an 'exit' after the './run_the_application' in the .profile.

When you exit the application, it will proceed to the next statement in the .profile file and exit out.

cd /home/somestuff
./run_the_application
exit

Re: auto logout

HPquestion — Wed, 11 Feb 2009 17:06:26 GMT

I tried the the exit earlier. If I put exit in the .profile, it doesn't open the application from Xterm at all.

Re: auto logout

Patrick Wallek — Wed, 11 Feb 2009 17:19:48 GMT

What kind of errors are you getting when it doesn't run?

The 'exit' after the 'run_the_application' should have no effect on the command, UNLESS you are doing a './run_the_application &', in which case the exit will kill the application when the shell exits.

Verify you are not trying to run the command in the background.

Re: auto logout

HPquestion — Wed, 11 Feb 2009 17:21:54 GMT

no error. It doesn't open the Xterm window at all if I put exit in the .profile

Re: auto logout

HPquestion — Wed, 11 Feb 2009 18:31:53 GMT

Thanks Parick. I am not running it in the background. If I put exit in .profile , xterm windown doesn't open at all

Re: auto logout

Steven Schweda — Wed, 11 Feb 2009 19:01:00 GMT

> [..] But its not existing out the $ prompt
> in the xterm.

What xterm? I think that you're hiding too
many details. Like who creates an xterm.

If you can provide a sample script which
really does something, then it might be
possible to suggest some changes. With no
information about who creates which process
how, running what, I'm lost.

Re: auto logout

Patrick Wallek — Wed, 11 Feb 2009 19:08:10 GMT

What is "./run_the_application"? Is that an executable or is it another script? If it is a script, please post the contents. There may be some code in there that is affecting us.

Re: auto logout

HPquestion — Wed, 11 Feb 2009 19:08:11 GMT

We are using reflection X software.

Reflection x is passing

/usr/bin/X11/xterm -fn 6x13 -sb -ls -display %IP#% -name %T% &)

command to open the xterm

Re: auto logout

HPquestion — Wed, 11 Feb 2009 19:10:23 GMT

"./run_the_application" is a binary executable.

Re: auto logout

Patrick Wallek — Wed, 11 Feb 2009 19:38:41 GMT

What you should do is put all of this in its own script and call it with the '-e' option to xterm.

Create a small scripts and "run_the_application.sh" and put it somewhere.

The contents would be:

# cat run_the_application.sh
#!/usr/bin/sh
cd /home/somestuff
./run_the_application

Be sure to take the lines out of the .profile, and make sure you make run_the_application.sh executable for the appropriate users.

Now modify your xterm line to be:

/usr/bin/X11/xterm -fn 6x13 -sb -ls -display %IP#% -name %T% -e /path/to/run_the_application.sh &)

Re: auto logout

HPquestion — Wed, 11 Feb 2009 20:34:38 GMT

Thanks Patrick...its working now :-)

Re: auto logout

HPquestion — Thu, 30 Apr 2009 19:24:25 GMT

It worked..now I have a related question.

usr/bin/X11/xterm -fn 6x13 -sb -ls -display %IP#% -name %T% -e /path/to/run_the_application.sh &)

My unix auditor doesn't like to see startup program as /usr/bin/csh in the /etc/passwd file as these users are not allowed to open a shell and do anyting. They are just allowed to run the application using x windows directly.

But if I put the startup program as /usr/bin/false instead of /usr/bin/csh for these user, the above command doesn't open the desired application.
What to do?

Thanks again!

Re: auto logout

Bill Hassell — Fri, 01 May 2009 01:17:14 GMT

It sounds like you want just the Xprogram to run and then disappear. Rather than put a real shell for a restricted user, create a shell script that starts your Xprogram followed by exit. Then the user's shell will actually be the script. Most Unix sysadmins do everything they can to prevent the scummy csh from ever running anywhere. Your shell script should look like this:

#!/usr/bin/sh
export DISPLAY+$(who -muR | awk '{print $NF}'):0.0
/full/pth/to/your/Xprogram some-params
exit

Save it and use chmod 755 yourScript. Run it interactively to make sure it works. Note that if any other variables are required for this program to run, be sure to include them in this script.

Re: auto logout

Dennis Handly — Fri, 01 May 2009 04:04:45 GMT

>Bill: export DISPLAY+$(who -muR | awk '{print $NF}'):0.0

Slight typo: export DISPLAY=$(who -muR ...

Re: auto logout

HPquestion — Wed, 13 May 2009 18:44:00 GMT

Re: auto logout

Bill Hassell — Thu, 14 May 2009 02:30:01 GMT

Tried something like below as suggested. but its not opening the application at all.

#!/usr/bin/sh
export DISPLAY=$(who -muR | awk '{print $NF}'):0.0
/full/pth/to/your/Xprogram some-params
exit

Try something is known to work:

#!/usr/bin/sh
export DISPLAY=$(who -muR | awk '{print $NF}'):0.0
/usr/bin/X11/xclock
exit

This should bring up the Xwindows clock. Your application should follow the $DISPLAY variable but if it does not, set the display according to their documentation.