Linux管理员手册 本章概述Linux系统首先描述操作系统提供的主要服务然后说明实现这些服务的程序with a considerable lack of detail本章的目的是理解系统整体以后再详细说明每个部分.-The Linux Administrator Manual This chapter provides an overview of Linux system first describes the major services provided by the operating system and then these services program with a considerable lack of detail purpose of this chapter is to understand the system as a whole and then a detailed descr iption of each part.