请问如何使用shell里的环境变量

[lilarcor]

已经设置了aaa变量，值为bbb，如何呼出aaa呢

[kingToolbox]

Sorry for the late reply.

In Windows, you can invoke the environment variable aaa via %aaa%, such as executing the command cmd /c ... %aaa%. And in Linux and MacOS, you can do this via $aaa.

[lilarcor]

thanks for your reply. As I tested, it works with system "cmd", but not for system "powershell".