Now, there will be an executable program in your directory that, when run, will print the value of the EDITOR environment variable, if any. This is what happens when I run it on my machine.
现在，目录中将有一个可执行程序，它在运行时将打印EDITOR环境变量的值(如果有值的话)。
It not only can run as the normal PC machine, but also can control the course of the motion by means of setting up the variable.
它不仅可以象普通PC机那样运行，还可以通过设置变量来控制运动过程。
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