In this chapter, you have learned how to work with the most commonly used commands in Linux. You now know how to manage (create, delete, copy, and move) files, how the filesystem is organized, how to work with directories, and how to view file contents. You now understand the shell and basic permissions. The skills you have learned will help you manage files in any Linux distribution and edit text files. You have learned how to work with vim, one of the most widely used command-line text editors in Linux. Those skills will help you to learn how to use other text editors such as nano and emacs. You will use these skills in almost every chapter of this book, as well as in your everyday job as a systems administrator.
In the next chapter, you will learn how to manage packages, including how to install, remove, and query packages in both Debian- and Red Hat-based distributions. This skill is important for any administrator and must be part of any basic training.