unsplash.sh

#!/bin/bash

# Realy simple and easy script for automatic background change of gnome shell screensawer wallpaper
# Install:
# 1. put this script somewhere
# 2. set script executable (chmod +x unsplash.sh)
# 3. add script to your crontab (crontab -e) [0 * * * * YOUR_PATH/unsplash.sh >/dev/null 2>&1]

PWD=$(dirname $(readlink -f $0))

# here are some other ways of downloading wallpaper

# https://picsum.photos/
#wget -O $PWD/wallpaper.jpg https://unsplash.it/1920/1200/\?random

# https://source.unsplash.com/
#wget -O $PWD/wallpaper.jpg https://source.unsplash.com/collection/630950/1920x1200
wget -O $PWD/wallpaper.jpg https://source.unsplash.com/1920x1200/\?stars,nature,sea,wather

# setting wallpaper as background for screensaver

# http://youness.net/linux/set-random-wallpapers-unsplash-com-ubuntu
gsettings set org.gnome.desktop.screensaver picture-uri file://$PWD/wallpaper.jpg