编程ING人人都能学会程序设计

蔡学镛老师力作，李开复老师力荐，带着兴趣学习程序设计

Classic Shell Scripting

An essential skill for Unix users and system administrators, shell scripts let you easily crunch data and automate repetitive tasks, offering a way to quickly harness the full power of any Unix system. This book provides the tips, tricks, and organized knowledge you need to create excellent scripts, as well as warnings of the traps that can turn your best efforts into bad shell scripts.