As you read through this book, we will introduce several abstract ideas in as
concrete a way as possible. As you become familiar and comfortable with these
ideas, you will begin to think of the abstractions as actual concrete objects. Having
already gone through this process ourselves, we've chosen to call computer science
ªthe discipline of concrete abstractionsº; if that seems too peculiar to fathom, we
invite you to read the book and then reconsider the notion
Linux scheme指的是在Linux操作系统中进行系统配置和管理的一套规则和方案。它定义了在Linux系统中如何完成各种任务,包括文件系统布局、用户管理、网络配置、安全设置等。Linux scheme通常由一系列的配置文件和命令行工具组成,用户可以根据需求调整定制这些设置,以满足自己的要求和偏好。