How to control Arduino from the command line?

Question

Arduino

And again, my next question, I need to send the number 1 to the Arduino Uno with Windows 7 via a .bat file and receive it via serial to the arduino. In general, the essence of the question is how to send a unit from the command line (bat file)? I tried to write commands like
echo N > com5:
It doesn't work.

Answer 1

Will it go?
stackoverflow.com/questions/9247630/windows-comman...

Answer 2

see communication with Arduino - programming work with COM-...