Shell Programming and Scripting

Hi,

I have created a shell script which is used by many users to change their password/unlock, etc., via menu. There is possibility users just close the putty window without proper exit from menu.

I want a solution so that if anybody forgets to stop that session, it should kill automatically itself after x amount of time. Or any point of time if it is waiting for long for user input it should automatically kill the session after x amount of time.

Shell is written in ksh and we are running it on Solaris 10.

Any thoughts??

How the script is invoked? If its invoked directly from command line, the process automatically closes with the session closed.

Are you performing any special rules with the exit? or just exit ?
Better to show the excerpt from the script which is used to close the session.

I have restricted users to login to server so I have put this script into their shell parameter into passwd file. I also have used all traps into script. As soon as user get log in they get menu.

My concern is if script is waiting for user input for x seconds then it should close the session automatically.

If you have one of the common login shells (ksh or bash) you can use the "TMOUT" environment variable.

Have a look at the man page for details.

I hope this helps.

bakunin

I had used TMOUT variable but it works only if it gets shell. In my case when the script runs it waits for user input so this variable doesn't work out.

Try something on these lines:

Code:

echo 'ENTER SOMETHING : '
if read -t 5 var
then
 echo "SOMETHING ($var) WAS ENTERED WITHIN 5 SECONDS"
else
 if (( $? == 1 ))
 then
  echo "NO INPUT... (CTRL-D)?"
 else
  echo "YOU DIDN'T ENTER ANYTHING FOR 5 SECONDS"
 fi
fi

read -t 5 option doesn't work over ksh.