How to DIRECTLY execute command in txt file in cmd?

Question

I have a question.

How can I execute command in a plain text file?

I know it seems crazy and I can simply rename it as a .bat file BUT it is important for me.
Without renaming it, can i execute it in CMD?

I know I can simply do this :

ren command.txt command.bat & call command.bat & ren command.bat command.txt

But this is too inconvenient. Any simpler way?

Answer 1

cmd < command.txt

Of course it depends of the real content of command.txt.