Script to restart any service automatically

We can set the cron to restart the server when it was down or not running. You can use following script to detect and restart the httpd,ngnix,Serv-U or any other services.

1) Create the file vi /root/autorestart.sh and add the following code and save it.
You can replace the Serv-U with any your service like httpd or ngnix

#!/bin/bash
# Restart command of your services
RESTART="/etc/init.d/Serv-U restart"
#Path to pgrep command
PGREP="/usr/bin/pgrep"

# Daemon name of your services
HTTPD="Serv-U"

# find pid of serivces
$PGREP ${HTTPD}

if [ $? -ne 0 ] # if service not running
then
# restart Service
$RESTART
fi

2) chdmo 755 /root/autorestart.sh

3) Set Cron to check every 3 minutes  vi /var/spool/cron/root

*/3 * * * * sh /root/autorestart.sh

4) Done