ubunu下用命令设置壁纸:
gsettings set org.gnome.desktop.background picture-uri “file:【fileName】” eg:gsettings set org.gnome.desktop.background picture-uri “file:/home/geekgao/图片/美国队长2.jpg”
ubunu下用命令设置壁纸
原文：http://www.cnblogs.com/Westfalen/p/5927158.html
