$ aptitude moo          > There are no Easter Eggs in this program
$ aptitude -v moo         > There really are no Easter Eggs in this program. -v (verbose)
$ aptitude -v -v moo      \ SAME
$ aptitude -vv moo      / SAME

$ pwd > Print Working Directory

• Linux - be proficient using Ubuntu for example and the CLI and understand how the shell works, what are environment variables, subshells, processes/tasks, etc...
• Docker (and docker-compose) - what are containers and how they work (conceptually) and how to create and run ones
• Git - what does version control system mean and how to use Git
• RDB (relational databases) - what are relational databases, and understand tables, how to create them and make relations between them as needed... also understand that through SQLite and PostgreSQL (preferred) or MySQL
• Python - how to write python very well and understand its [OOP] implementation...
• Virtualenv - And how to create virtual environments for python to isolate it from the system's installed version...
• Virtualenvwrapper to manage virtual environments easily
• Pyenv - to manage python versions globally for your user on the system, instead of using th