在/usr/share/applications和/usr/share/app-install/desktop寻找需要的图标，没有就自己做一个
eclipse的图标
[Desktop Entry] Version=1.0 Name=eclipse Exec=/home/common/software/eclipse/eclipse Termina=false Icon=/home/common/software/eclipse/eclipse.png Type=Application Categories=Development
sublimetext的图标
为了使得sublime能修改root的文件，安装gksu，然后在Exec前面加上gksu
[Desktop Entry] Name=SublimeText2 Type=Application Terminal=false Comment=Edit text files Exec=/home/common/software/SublimeText2/sublime_text %F Icon=/home/common/software/SublimeText2/sublime_text.png
注意末尾不要有空格
原文：http://www.cnblogs.com/tonglin0325/p/5513598.html