Are there any video tutorials about using the Windows command line?
While not a video tutorial, I feel compelled to recommend Rob van der Woude's Scripting Pages as the richest resource (that I have found) for writing batch scripts or DOS (Windows cmd) commands. The Batch Files and Commands page also gives a comprehensive list of which commands work in DOS vs. Windows, etc... Whatever it is you're trying to do, you can probably figure-out how to do it there.