说明：  本书从实质上、专业上讲解UNIX操作系统，深刻地剖析了UNIX系统的基本概念。内容包括UNIX的基本特性及高级性能，例如shell配置、目录管理、shell编程，编辑器的使用方法等。本书条理清晰、重点突出，为快速了解与掌握UNIX操作系统提供了极有价值的参考。
(The book in essence, a professional on the UNIX operating system, a profound analysis of the basic concepts of UNIX system. Includes the basic characteristics of UNIX and high-level performance, such as the shell configuration, directory management, shell programming, editor, such as the use of methods. The clarity of this book, focused, in order to quickly understand and grasp the UNIX operating system provides a very valuable reference.)