Automatically power on servers if PoweredOff in VMware ESXi 5.0

AutoPowerOnESXi

First time configuration
vi /var/spool/cron/crontabs/root
0 */15 * * * /vmfs/volumes/datastore1/auto-poweron.sh

vi /vmfs/volumes/datastore1/auto-poweron.sh
VMS=$(vim-cmd vmsvc/getallvms | grep -v Vmid | awk '{print $1}')
for VM in $VMS ; do
  PWR=$(vim-cmd vmsvc/power.getstate "$VM" | grep "Powered")
  if [ "$PWR" == "Powered off" ] ; then
    vim-cmd vmsvc/power.on $VM
  fi
done

chmod 775 /vmfs/volumes/datastore1/auto-poweron.sh

kill `cat /var/run/crond.pid`

## For persistent crontab (when OVH server restarts)
vi /etc/rc.local
/bin/kill $(cat /var/run/crond.pid)
/bin/echo '0 */15 * * * /vmfs/volumes/datastore1/auto-poweron.sh' >> /var/spool/cron/crontabs/root
crond

## Restart cron daemon
busybox crond

cd /vmfs/volumes/datastore1/
./auto-poweron.sh


# To Edit the Crontab next time #

kill `cat /var/run/crond.pid`
vi /var/spool/cron/crontabs/root
busybox crond