many a little makes a mickle

http://www.ibm.com/developerworks/cn/aix/shellprog/?S_TACT=105AGX52&S_CMP=NL&ca=dnl-cn-10232007
bash
awk
sed
vi+emacs

IBM 的资源多的让人恐怖，兴奋啊！

http://www.ibm.com/developerworks/cn/linux/theme/special/index.html整理的比较好，文章有些老了。

http://www-128.ibm.com/developerworks/search/searchResults.jsp?searchType=1&searchSite=dWChina&pageLang=zh&langEncoding=UTF8&searchScope=dW&query=Linux%E7%8E%AF%E5%A2%83%E8%BF%9B%E7%A8%8B%E9%97%B4%E9%80%9A%E4%BF%A1&Search.x=15&Search.y=5