Book Image

Mastering Ubuntu Server - Third Edition

By : Jay LaCroix
Book Image

Mastering Ubuntu Server - Third Edition

By: Jay LaCroix

Overview of this book

Ubuntu Server has taken data centers around the world by storm. Whether you're deploying Ubuntu for a large-scale project or for a small office, it is a stable, customizable, and powerful Linux distribution with innovative and cutting-edge features. For both simple and complex server deployments, Ubuntu's flexible nature can be easily adapted to meet to the needs of your organization. This third edition is updated to cover the advancements of Ubuntu 20.04 LTS and further train you to understand how to use Ubuntu Server, from initial deployment to creating production-ready resources for your network. The book begins with the concepts of user management, group management, and file system permissions. Continuing into managing storage volumes, you will learn how to format storage devices, utilize logical volume management, and monitor disk usage. Later, you will learn how to virtualize hosts and applications, which will include setting up QEMU & KVM, as well as containerization with both Docker and LXD. As the book continues, you will learn how to automate configuration with Ansible, as well as take a look at writing scripts. Lastly, you will explore best practices and troubleshooting techniques when working with Ubuntu Server that are applicable to real-world scenarios. By the end of this Ubuntu Server book, you will be well-versed in Ubuntu server’s advanced concepts and attain the required proficiency needed for Ubuntu Server administration.
Table of Contents (26 chapters)
24
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25
Index

Editing files with the Nano and Vim text editors

Now that we know how to copy and move files, it would be useful to know how to edit them. There are multiple forms of text editors for Ubuntu, some available in the command line, and others in graphical environments such as gedit in the desktop version.

Some may feel that command-line text editors are more complicated than Graphical User Interface (GUI) editors (and to be honest, they can be), but the main benefit is that you can use the same editor regardless of whether or not you have a GUI. In a way, this means the non-graphical editors are a bit more portable, and you can rely on them more. Almost all installations of Ubuntu will include the nano text editor, and you can rely on that more often than something like gedit being available. In addition, the vim editor is another popular consideration. It's a bit more advanced than nano, but in my opinion, much more powerful. In the following sections, we'll look...