This script sets up two cronjobs to cycle between two wallpapers at times specified by the user. The idea is to allow for a "day-time" and a "night-time" wallpaper that will automatically be exchanged.
Run wallpaper-day-night-cycle.sh. It will prompt you for the wallpapers and times and set up the cronjobs for you.
While there are no real dependencies that need to be fulfilled, the script will only work on Cinnamon DE for now. The idea is to make it more distro-agnostic in the future.