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First, everything is a string
Two, references and metacharacters
Three, where does the string come from, where to go
Four, plus a little bit of definition, you can push to export the entire Bash scripting language
https://www.zhihu.com/question/21418449Mort | Zsh vs. Bash: Incomplete contrast resolution (1) 2014-10-07BdpqlxzWhat's the difference between zsh and bash?A lot of people have written about "why zsh is better than bash", "Why zsh is better than
Let's take a look at the simple technique for processing command line independent variables, and then look at the basic programming structure of bash.
Receive independent variable
In the sample program in the introductory article, we use the
Xi. functionsThe shell function is defined by the description of the shell grammar above and holds a series of commands waiting to be executed later. When the shell function name is used as a simple command name, a series of commands associated with
Focus on Listing 7Now, many Linux® and UNIX® systems have bash shells, which are the common default shells on Linux. In this article, you'll learn how to handle parameters and options in a bash script, and how to use the shell's parameter extensions
Bash should be the most popular shell scripting interpreter on Linux today (and a shell called dash, I hate this stuff too much.) As long as you work on Linux and want to work more happily, you should be familiar with the most basic bash programming,
recall that we talked about user management, rights management, and also introduced two commands, one is the install command, the other is mktemp, here we do not do more introduction.For user management, it is the allocation of the resources of the
Detailed Anatomy of bash script programmingbackground: bash scripting is a crucial part of Linux learning, and it may be easy to complete a script, but it's not easy to make your own script write. Bash is almost always available for all Linux
Detailed Anatomy of bash script programmingbackground: bash scripting is a crucial part of Linux learning, and it may be easy to complete a script, but it's not easy to make your own script write. Bash is almost always available for all Linux
Linux Shell Bash with special meaning exit code purpose descriptionThe exit command exits the current shell and can terminate the current script execution in a shell script.Common parametersFormat: Exit nExit. Set the exit code to N. (cause the
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