#reading shell http://www.cnblogs.com/peida/tag/%E6%AF%8F%E6%97%A5%E4%B8%80linux%E5%91%BD%E4%BB%A4/default.html?page=1 Linux命令五分钟 http://roclinux.cn/?cat=3 link http://oss.org.cn/kernel-book/index.htm http://oss.org.cn/kernel-book/ldd3/index.html http://vbird.dic.ksu.edu.tw/linux_server/0230router.php#dynamicroute