So, I am finding a lot on
>NUL, which redirects standard output to NULL, but I have run across
set /p "=VARNAME"<NUL
and have found no documentation on it whatsoever.
So far, what I've found is that it adds a carriage return (at least that is the observed behavior) as when I remove it I have to press enter for each iteration of the script found in an answer here: get driver version via command line Windows
Can anyone help me understand what this is, or better yet, where there is documentation on what this is actually doing?