| |
UNIX Shells by Example, 3rd Edition
The shell is a special program used as an interface between the user and the heart of the UNIX operating system, a program called the kernel, as shown in Figure 1.1. The kernel is loaded into memory at boot-up time and manages the system until shutdown. It creates and controls processes, and manages memory, file systems, communications, and so forth. All other programs, including shell programs, reside out on the disk. The kernel loads those programs into memory, executes them, and cleans up the system when they terminate. The shell is a utility program that starts up when you log on. It allows users to interact with the kernel by interpreting commands that are typed either at the command line or in a script file. |
 |
| |
 |
|
 Que - Linux Socket Programming..
FreeBSD_book 6.0 用户手册
Linux Kernel Development Secon..
Advanced Linux Programming(高..
UNIX Shells by Example, 3rd Ed..
Linux新手管理员指南
linux - Advanced Bash Shell Sc..
LINUX系统分析与高级编程技术
Linux网站建设和维护全攻略(PDF)..
BIND9 管理员参考手册
|
php5研究室本地下载