[artursapek]

We have actually been thinking about expanding on this content with more advanced stuff, including symlinks and permissions.

[wyclif]

I'd encourage you to make it more incrementally advanced, i.e. progressively more difficult toward the latter third of the course.

[photosinensis]

After you get past that, maybe some basic scripting would be in order.

The course needs more content, through and through. You've got a solid beginning, though.