学步园

    这几篇文章讲的透彻，清晰 

http://luckyy.net/linux/1000

 http://www.blogabc.net/i1930_%E8%AF%A6%E8%A7%A3Linux%E7%B3%BB%E7%BB%9F%E4%B8%AD%E8%BD%AF%E8%BF%9E%E6%8E%A5%E5%92%8C%E7%A1%AC%E9%93%BE%E6%8E%A5%E7%9A%84%E5%8C%BA%E5%88%AB%E4%B8%8E%E8%81%94%E7%B3%BB.htm

http://blog.csdn.net/hairetz/article/details/4168296 

http://www.groad.net/bbs/read.php?tid-291.html