Comparing CRON PID w/Current PPID

GregWold · #1 (**permalink**) 05-08-2008

All,

I've got a script that needs to check if it was started by cron. The code seems to be right, but it's not running correctly if cron starts it. Am I getting the pid's correctly? I'm not having any luck figuring it out.

Any help is appreciated!

Code:

      CRON_ID=$(ps -aef | grep /usr/sbin/cron | grep -v grep | awk '{print $2}')
      CP_ID=$(ps -aef | grep $PPID | grep -v root | grep -v grep | awk '{print $3}')

      if test $CRON_ID = $CP_ID
      then
         # cron started the script
      else
         # user started the script

Franklin52 · #2 (**permalink**) 05-08-2008

What is problem you have with it. Try to echo the variables to see if you get the proper pid and ppid.

Regards

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