Also, for C), I forgot to include the #!/bin/bash line... so I hope you see that is supposed to be a shell script that launches start_miner.sh with a 1, then 2, then 3, etc. I was under the impression that LinuxCoin's start_miner.sh had a numeric parameter that started miner 1, miner 2, etc.
The start_miner script in LinuxCoin is sort of an interactive gui, lets you enter flags and parms without going CLI. I think OP means a startup script that just switches everything on as the computer turns on, and I've forgotten which /etc file in LinuxCoin you need to add it to.