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This article to share with you is about how to understand R1-007 Shell variables, Xiaobian think quite practical, so share to everyone to learn, I hope you can read this article after some gains, not much to say, follow Xiaobian to see it.

There are two types of variables in the Linux Shell: local variables and global variables.

(1) The visible range of local variables is within a code block or function. This is the same with most programming languages. But a local variable must be explicitly declared local, otherwise it is globally visible, even within a block of code.

(2) Environment variables are global variables, visible in the global scope, in the declaration of global variables, do not need to add any modifiers.

The above is how to understand R1-007 Shell variables, Xiaobian believes that some knowledge points may be seen or used in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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