in reply to
How do I keep the command line from eating the backslashes?
This feels like an XY problem. You're trying to do X, and you thought of solution Y. So you're asking about solution Y, without even mentioning X [your later posts hint at X, but never really describe it]. The problem is, there might be a better solution, but we can't know that unless you describe what X is.
In other words, I would be surprised if you really need the literal '\"' to remain intact. What is the actual problem you're trying to solve?