Hmm. You may have better luck if you ask this question somewhere at openinteract instead of here.

On the web page you gave, most of the grey boxes appear to be command lines which you should type at a shell prompt, so the answer is to your question is yes.

Have you read through any of the online documentation beyond this QuickStart? If you are new to Linux/Unix systems you should read some background documentation, such as those found at the Linux Documentation Project

Good luck. --bibo