Beginning with a brief tour of the filesystem, we take you deep into the dot (.) of your directory listing so you can get the most from your CLI.
Still deeper into the dot (.) with an dive into access permissions. Study up because there's going to be a quiz.
We have an Apache server which serves out of a particular directory, and just supplies a listing of files. From this directory, each subdirectory is owned by a certain group of users (at the filesystem level).