A shell script is simply a text file containing a sequence of commands. When you run the file—or script—it executes the commands contained in the file. The term shell simply refers to the particular command-line user interface you use to communicate with the Linux kernel. Several different...
Discover the essentials of Linux installation, configuration, and shell scripting in this comprehensive guide. Get started with Linux and unlock its full potential.
本书是关于 Linux 命令行和 Shell 命令的相当全面的资源。通过完成《Linux 命令行和 Shell 脚本圣经》,您将能够编写自己的 Shell 脚本,自动化 Linux 系统上的几乎任何任务。 本文章首发在LearnKu.com网站上。
A shell script is simply a text file containing a sequence of commands. When you run the file—or script—it executes the commands contained in the file. The term shell simply refers to the particular command-line user interface you use to communicate with the Linux kernel. Several different...
reserved word, then the shell shall immediately exit. exec200>$lock Normally “exec” in a shell script is used to turn over control of the script to some other program. But it can also be used to open a file and name a file handle for it. Normally, every script has standard input ...
If all went well, then you should see "Hello World!" printed to your terminal. Congratulations! You've created your first shell script. Let's look at some more examples. Examples The following script will create a directory called "Example" in the present working directory while also creating...
window, where users can type commands to make the computer perform operations. The language can also be used to read and execute commands from files, called shell scripts. Shell script itself is a programming language, and like any other language, Bash is a tool that can be used in many ...
The #! characters are called a shebang, and instruct Linux to use following path as the file interpreter. The .sh file extension is not required but it is good to have it in order to inform people that this is a shell script and not a binary file. Notice that echo is a bash shell...
An introduction to the Linux Command and Shell for BeginnersGedris, Victor
2) case var in str1) ops ;; str2) ops ;; str3) ops ;; ... *) ops esac #!/bin/bash #Demo for case usage echo "***" echo "Please select your operation:" echo " Press C to Copy" echo " Press D to Delete" echo " Press ...