From MEPIS Documentation Wiki
What is the Init System
The Init system manages what the system will do on startup, shutdown, and restart. It is used for starting up system services that do not require interaction. It also can start X or a display manager.
In MEPIS the used directories are:
An Init script is a script that starts up a service. It should not be interactive and responds one of the following arguments:
All scripts are found in the /etc/init.d/ directory.
The following code is a example of how to start or stop a script by hand: