unix session

Shell Programming and Scripting
1

Hi,

we have our shell sessions timing out after every 5 minutes , if there is no activity.

Is there any way i can keep my session for longer than 5 minutes or untill i end the session.

may be any dummy program that runs background and doesn't take up lot of resources or any ideas.

Thanks for your time
Thomas.

2

Perhaps you have $TMOUT set. Check the man page for your shell.

3

Just type more and your shell will survive.

4

have a command running that constantly produces output like
e.g. watch, sar, vmstat, or a one-line while loop

5

Thanks for your suggestions,

But when i try vmstat to run for every 4 minutes for next 8 hrs in & , i couldn't keep the shell session from timing out, I think this is probably set by our admin as a standard, i just hate to re -login everytime it sessions out.

when you said one line while loop i didn't get it. .. can you please elaborate on this..

Thomas.

6

A standard one liner for keeping sessions alive:

while true; do echo ""; sleep 300; done &

You can fiddle around with the length of the sleep command depending on the timeout interval that you have set.

7

YGOR's correct. If your shell is timing out you need to set the TMOUT env variable. TMOUT=60;export TMOUT should do it. You can check it by using
echo $TMOUT or env | grep -i TMOUT.

Mr-synapse