How can I read a C# Console app's entire command line, as it was typed?

I am writing a little REPL console app, and I read a command, split it, and use a piss-poor switch statement to decide which method to call (instead of using the Strategy Pattern). I then place each command into a history, for audit. The command line when starting the app, as typed, is lost as it is already split. I would prefer to have the whole command line and get on with my loop and it's own split routine. Is it possible to get the whole command line somehow?