I wanted to shoot as many photos as possible with a raspicam.
But no photos at night (the hours are in UTC).
Save the file as
/root/shoot.sh and set the file as executable.
Archlinuxarm doesn't have a rc.local file. So I had to use systemd to start the script and keep it alive:
/etc/systemd/system/camera.service and enable it with
systemctl enable camera.service.
It will start now at the next boot.