Linux常用命令详解

Linux netstat命令详解:
http://www.cnblogs.com/ggjucheng/archive/2012/01/08/2316661.html

Linux lsof详解:
http://blog.csdn.net/guoguo1980/article/details/2324454

Linux awk命令详解:
http://www.cnblogs.com/ggjucheng/archive/2013/01/13/2858470.html