说明：  本书以循序渐进的方式全面系统地介绍了UNIX中Shell编程的方法，重点讲述了如何使用Shell所提供的工具编写出灵活高效的程序。 全书分为24学时，首先回顾了UNIX的基本内容，然后介绍如何使用Shell所提供的各种工具编写程序，最后讲解了Shell编程中可能会遇到的一些问题。另外，本书在每学时之后都为读者提供了习题，以帮助读者更好地掌握所学的内容。 本书内容丰富，结构合理清晰，既可作为UNIX开发人员的参考书，又可作为计算机应用人员的培训教材
(This book step by step to a comprehensive and systematic introduction to UNIX in the Shell programming methods, focus on how to use the tools provided by Shell to prepare flexible and highly efficient procedure. The topics are divided into 24 hours, first reviewed the basic content of UNIX, and then describes how to use the Shell offer a variety of tools for programming, and finally on a Shell Programming may encounter some problems. In addition, this book in every after school to provide readers with the exercises to help readers better grasp of the science content. The book is rich in content, structure, reasonably clear, both as a UNIX developer s reference books, but also as a computer application training materials)