本书共分五部分，详细介绍了shell编程技巧，各种UNIX命令及语法，还涉及了UNIX下的文字处理以及少量的系统管理问题。本书内容全面、文字简洁流畅，适合Shell编程人员学习、参考。 -The book is divided into five parts, details of shell programming skills, a variety of UNIX commands and syntax, but also involves under UNIX text processin

查看linux系统硬件脚本，可以查看内存频率。CPU个数，各种硬件反编码。-simple shell

Chapter 2 Logging In and General Orientation Upon completion of this module, you will be able to do the following: • Log in to a LINUX system. • Log out of a LINUX system. • Look up commands in the Manual. • Look up comm