Show parent processes for zombies

Use this script to display all processes related (parents and children) to zombie processes on
a Unix system. In this case processes are run by user oracle.

#!/bin/ksh

ZOMBIES=`ps -ef|grep oracle|grep 'defunct'|grep -v grep|awk '{printf("%s ", $2);}'`

if [ "X${ZOMBIES}" == "X" ] ; then

	echo "No zombies found"

else

	ptree ${ZOMBIES} | more

fi


The output may be something like:

4386  ora_qmnc_DBNAME
  20255 <defunct>
  19860 <defunct>
  5902  <defunct>
  8695  <defunct>
  29756 <defunct>
  23013 <defunct>
  21826 <defunct>
  8843  <defunct>
  10816 <defunct>