Linux

Brief presentation of the Linux system.

Introduction to the basic structure of the Linux file system, and introduction to the concepts of relative and absolute paths.

Introduction to the concept of commands, applied to the Linux system.

In Linux-based systems, permissions allow controlling who can access what. Each file or directory has permissions associated with the owner, the assigned group, as well as all other users.

Linux is based on a system of users and groups that are useful for the people who use it, as well as for the system itself.