How to install custom upstart script

To install custom upstart script, please follow below steps (in this example, I'll be using a service call cat):

1. Copy the script into /etc/init 
2. To make upstart distinguish the new service, run: 

• $ initctl reload-configuration 

3. Check whether your script is already in upstart by running:

• $ initctl list | grep cat 

  cat stop/waiting

4. And you are done, you can check the status of your service by running:

• $ service cat status 
  cat stop/waiting

5. You can also do the same with start, stop and restart

• $ service cat start
  * Starting cat .... [OK]

• $ service cat stop
  * Stopping cat .... [OK]

• $ service cat restart * Restarting cat .... [OK]