Working Environment
How you should do these exercises
Be careful, but you can carry these exercises out on almost any computer, safely. You may be deleting files and directories, hence the warning! Do not practice on a production system!
If you are familiar with VMWare Workstation or Hyper-V, you can stand up some VMs to carry out this work, this is always the preferred approach.
In Unix, your home directory will be /home/username
Throughout these notes, adapt my instructions to wherever your home directory actually is.