= 2009-06-20 =
 
 * [http://mirror.sars.tw/Bash_Shell_by_ols3/ Shell 設計入門]
 * http://turing.cs.niu.edu/~freedman/330/ - Shell programming and specific shells

== Web Service ==

 * [http://www.famfamfam.com/lab/icons/ FamFamFam] - Free Icon Resource - 免費 Icon 圖庫