reference: 10.5. Customizing Desktop Backgrounds

It is said that using

gsettings set org.cinnamon.desktop.background picture-uri 'file:///opt/corp/background.jpg'

to change the desktop wallpaper.

but in centos, there are not any path called 'cinnamon', it is specific in linux. It should be 'gnome' in centos, so the command should be

gsettings set org.cinnamon.desktop.background picture-uri 'file:///opt/corp/background.jpg'