Specifications

84 Implementation of a Low Cost Video Wall using Raspberry Pi devices
sudo chmod 755 /etc/init.d/z01.sh
Finally, to register the script to be run at start-up and shutdown, the following command
is run:
sudo update-rc.d z01.sh defaults
If ever the script wants to be removed from start-up, the following command will be run:
sudo update-rc.d -f NameOfYourScript remove