Following the example of the execution of the argument CMD, you could write a shell or interactive environment in Rexx (perhaps running either external utilities or built-in commands, much like bash).

按照参数cmd执行的例子，您可以在Rexx中写一个shell或者交互式的环境(或许会运行外部的实用程序或者内置命令，正如同bash)。

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