Literature on demons?

Question

linux

Is there any suitable literature that would tell how to correctly write demons, and when it is necessary, and when can you do without them?

Answer 1

A daemon differs from a regular console application in that it refuses access to the console and becomes independent of the life and death of the ancestor process and the console. How would this sentence be extended to 600 pages?

Answer 2

Why do you need literature?
If you need to provide some resource constantly (to answer requests) - write a demon. If you need to process something once, you don't need a demon.
How to write well:
One simple rule is to use resources wisely. Eat less memory, CPU, disk, network. Release resources when you don't need them.
And that's all.

Answer 3

ls -l /etc/init.d/ | grep -E "skeleton|README"
-rw-r--r-- 1 root root 2427 Mar 13 2014 README
-rw-r--r-- 1 root root 4290 Mar 13 2014 skeleton
Examine the contents of these files