script to monitor apps and db listener running on single node

This script is useful to frequently monitor db and apps listener status running on single node.
Run this script in crontab to frequently monitor db&app listener status.

#!/bin/bash
rm DB.log
rm AP.log
ps -ef|grep tns|grep -v APPS_DEV|grep -v grep >DB.log ###########APPS_<DBNAME>########
ps -ef|grep tns|grep APPS_DEV|grep -v grep >AP.log      ###########APPS_<DBNAME>########
if [ -s DB.log ]

then
if [ -s AP.log ]
then

echo -e “\e[1;32m DB LISTENER UP : `date` | \e[1;32m APP LISTENER UP :`date` \e[0m” >>lis.log

else

echo -e “\e[1;32m DB LISTENER : `date` | \e[1;31m APP LISTENER DOWN :`date` \e[0m” >>lis.log

fi

elif [ -s AP.log ]

then

echo -e “\e[1;31m DB LISTENER DOWN: `date` | \e[1;32m APP LISTENER UP :`date` \e[0m” >>lis.log

else
echo -e “\e[1;31m DB LISTENER DOWN: `date` | \e[1;31m APP LISTENER DOWN :`date` \e[0m” >>lis.log
fi