You’ve assume your beginner knows that In the Terminal meand open the Terminal application, knows how to open the Terminal, knows that the Terminal uses typed commands, knows that typed commands are followed by Enter, and knows that the text following Terminal are the typed commands to be entered.

The non-garbling threw me off (it wasn't jabbernocks), so assumed some passing familiarity. But even granting that, you can add a few minutes and a few google searches to your complexity budget.