I am unaware of any CMD line instructions. Just like Scripting, I do not know of any way to implement those sorts of instructions.
Maybe there are some neat "hidden" features, but I have not encountered, nor read of those.
Does really it support scripting?
Sorry, but I do not think that I was clear. I've re-read my statement, and see that I could have said it better. Let me try again:
At this point in time, I am unaware of either the support of Scripting, or CMD line instructions in PrPro. Maybe Scripting will show up in CS5, or maybe CS6. With not one word, that I have seen, on Scripting, I would assume that it is NOT going to be part of CS5, but would be happy to be wrong.
Good luck, and sorry for my confusing reply.