A path that starts from the meaning of the prompt and arrives at the routine management of a server in service. Every command is presented for what you need to know in order to use it well: what it answers, in what situation it is used, how it is written, which examples make it clear and what happens when you get it wrong.
Who it is for: anyone who administers or will have to administer Linux systems, IT contacts, developers who work on remote servers, and anyone coming from Windows who needs an orderly way in.
Prerequisites: none of a technical nature. You need a Linux system to practise on: a virtual machine, a container or a test server are all fine.
Estimated duration: 43 hours. 10 modules, 146 test questions, 10 practical exercises, a final test and a personal certificate.
Content updated to October 2026. The examples are verified on Debian 13 and Ubuntu 24.04 and 26.04 LTS; where the Red Hat family behaves differently the text points it out. Each module refers to the relevant official documentation.