Linux common commands-47: source

The source command is usually used to execute the initialization file that has just been modified to take effect immediately, such as environment variables.

Syntax format: source [file]

Example

 # 很多时候,我们安装过一些基础软件,会设置一些环境变量,像PATH,通常是编辑~/.bashrc,想让变量即刻生效,就可以使用source source ~/.bashrc

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