Git provides the easiest way to manage Moodle code, including updates and upgrades. An update is a minor version change such as from 3.3.2 to 3.3.3 for example, whereas an upgrade involves a major version change such as from 3.3 to 3.4. These examples were all run on CentOS Enterprise Linux 7 but should be similar for any Linux distro.
ICTWEB302 is a TAFE unit that goes by the title of Build simple websites using commercial programs. Like many TAFE units, it doesn’t take too much reading between the lines to see what the original intent of this unit was: use the proprietary software product Dreamweaver (TM) to build a website.