UNIX是一类功能强大的主流操作系统。本书从初学者的角度介绍了UNIX的系统概念及其命令的使用，阐述的内容都是针对初学者完成日常工作所必需的各个方面，涉及UNIX系统的常用命令、UNIX文件系统、vi编辑器和Emacs编辑器、UNIX通信工具、shell命令和程序开发，以及一些更为深入的UNIX命令-UNIX is a powerful mainstream operating system. Book from the beginner s point of view the use of the concept of a UNIX system command, described the contents are necessary for beginners to complete their daily work in all aspects of UNIX system commands, the UNIX file system, vi editor and the Emacs editor, UNIX, communication tools, shell commands and program development, as well as some more in-depth UNIX command