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# 1  
Old 06-06-2006
Inactive Session

Hi, I am new to forum, I am wondering anyone can help me ?

Is there a command to tell whether a particular process is already inactive, so I can issue a kill command to end it. I have been encountering scenerio whereby users always shutdown abnormally by closing the windows, and my application cannot end by itself. Therefore I will have to manually check and kill manually, otherwise my server uptime will go up very fast.

Appreciate if anyone can help on this. Many thanks in advance.

Best Rgds
# 2  
Old 06-06-2006
That looks like a programming matter... You should "catch" the closing window event or whatever it's called.. Or something like that... ? don't know...
# 3  
Old 06-07-2006
Hi Grial,

Thanks for dropping by. All our session are telnet session and running some xbase application via some emulator software. How do I "catch" the closing window event ? Can ps -ef tell if a process has become inactive ?
# 4  
Old 06-07-2006
Well, of course I'm not sure If you could do this but, when you close a telnet session, the shell sends a HUP signal to all his child process when the session is finished. Prehaps you only have to catch that signal and close your app then...
# 5  
Old 06-07-2006
It comes to my mind one thing...
who -u gives you info about login sessions. One of the fields is "line activity". You could check (with a crontab, for example) this time and kill the user (last field of de output is the pid of the sell) when he/she reaches x time of inactivity... But this will only work while the user is logged in...
# 6  
Old 06-07-2006
I'm not very good at shell programming though, you can use following code to kill users who are inactive for more than 30 minutes:
who -u > ./aaa
grep -v "\." aaa > bbb


while read a b c d e f g;
hour=$(echo $f | head -c 1)
min=$(echo $f | tail -c 3)
let minute=$hour*60+$min
if [ $minute -gt 30 ]; then
echo "KILLING USER........ :$a \n IDLE SINCE..........: $minute MINUTES"
kill -9 $g
let count=$count+1
done < ./bbb
echo "\n\n TOTAL USERS KILLED..:$count\n"

You can modify this as per your requirements.

# 7  
Old 06-08-2006
Hi all,

Thanks for your reply.

But I think if a session is idling for 30 mins, no necessary it is inactive, right ?

Some of the sessions if it is generating report, then can easily takes hours, I can't just kill the session just like that. I think who -u might help in this case, to check if any login have x time of inactivity, so that I can judge from there what session can be killed.

Too bad, there is no command that can tell if a session is completely dead. In this case, I will have to check manually.

Thanks and have a nice day.

With regards

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