We are assuming that you have Linux up and running and that you have an account with root access, either because you know the root password, or because sudo has been configured. In the following sections, we will use $(whoami) whenever the login of your work user is required in a command line. This is a shell command that will substitute your login in the command you are typing.
Some operations will definitely be easier if you have a GitHub account. If you don't have one already, go to https://github.com and create one.