My notes are based on the idea of writing a script that is not simply called at the end of the boot process by rc.local, but is integrated in the loading and unloading orders of scripts during the boot or shut down process. It is made to start and stop always-on process or services. Something like that has been discussed in the past (e.g. Been hours trying... Please help me start a sciprt on boot. rc.local, init.d, rcX.d. cant get any to work. Please - #3 by tilde88).
This is stuff that is more in the domain of the system developers and less in the domain of system administrators, as rc.local probably covers the vast majority of cases. If I were to create a detailed tutorial assuming only a cursory knowledge of SystemV, it would require one pretty long document. That’s why I was not sure if the juice is worth the squeeze. Also because I have another project I still need to finish and post here in the forum.
I will drop this for now.
Thank you.