文档预览： 程式執行流程 人下命令給shell shell對kernel下命令 kernel對hardware執行工作，並回收結果 kernel回傳給shell shell 顯示出執行結果 kernel 又是什麼呢?? key: 其實DOS時代也有shell,就是command.com 点击下载

文档预览： 3 Why Shell? The commercial UNIX used Korn Shell For Linux, the Bash is the default Why Shell? For routing jobs, such as system administration, without writing programs However, the shell script is not efficient, therefore, can be used for ... 点击下载

文档预览： 第五章 shell 编程 shell 编程的基本过程分为三步： 1. 建立 shell 文件 包含任意多行操作系统命令或shell命令的文本文件； 2. 赋予shell文件执行权限 用chmod命令修改权限； ... 点击下载

文档预览： ** SSH ( Secure Shell ) It's secure remote shell. IPCHAINS...modification, all hostsare not modifiedat once.We don't resume operation ... 点击下载

文档预览： What is a shell program? After logging onto the system a prompt for input appears which is generated by a Command String Interpreter program called the shell. The shell: interprets the input, takes appropriate action, and Finally prompts for ... 点击下载