What is Init.d?

What is init.d? Related posts:How is Sample Skeleton of a Subsystem Control Program in /etc/init.d ? How to Write a System V Init Script to Start, Stop, and Restart My Own Applicati… Related posts:

1. How is Sample Skeleton of a Subsystem Control Program in /etc/init.d ?
2. How to Write a System V Init Script to Start, Stop, and Restart My Own Applicati…