apt-get remove xfce4
apt-get remove xfce4*
apt-get autoremove
apt-get autoclean
apt-get clean
---
更新软件
apt-get update update softwarelist
apt-get upgrade upgrade software itself
清理XFCE4卸载残留
原文：http://www.cnblogs.com/alfredsun/p/6918521.html
