Shell Programming and Scripting

I have a ksh script (script1) that calls another ksh script (script2). If script2.ksh hangs or takes too long to execute I want script1.ksh to kill the call to script2.ksh and instead just display "Script2 can't run right now". Could someone help me with coding this?

Hello mrskittles99,

You could set the script you want to run in the background, capture the process id and then set a timer running. It always feels a bit spaghetti when i do this sort of thing though.

Code:

#!/bin/ksh
echo "`date` Running script2"
script2 &
SCRIPT2PID=$!

timer=0
until [ $timer = 600 -o `ps -fp $SCRIPTPID|wc -l` -ne 1 ]    # Set wait time to 600 seconds or 10 minutes.
do
   sleep 1
   ((timer=$timer+1))
done

if [ `ps -fp $SCRIPTPID|wc -l` -ne 1 ]
then
   kill $SCRIPT2PID
   echo "`date` Script2 can't run right now"
else
   echo "`date` Script2 complete"
fi

I hope that this helps. It may take a bit of trial and error to get the exact process right. Try it with a script2 that just contains a sleep command itself.

Any better suggestions? I would like to know too as I'm not that comfortable with what I've coded above.




Robin
Liverpool/Blackburn