Book Image

Fundamentals of Linux

By : Oliver Pelz
Book Image

Fundamentals of Linux

By: Oliver Pelz

Overview of this book

Linux is a Unix-like operating system assembled under the model of free and open source software development and distribution. Fundamentals of Linux will help you learn all the essentials of the Linux command line required to get you started. The book will start by teaching you how to work with virtualization software and install CentOS 7 Linux as a VM. Then, you will get to grips with the workings of various command line operations, such as cursor movement, commands, options, and arguments. As you make your way through the chapters, the book will not only focus on the most essential Linux commands but also give an introduction to Bash shell scripting. Finally, you will explore advanced topics, such as networking and troubleshooting your system, and you will get familiar with the advanced file permissions: ACL, setuid, and setgid. Fundamentals of Linux includes real-world tasks, use cases, and problems that, as a system administrator, you might encounter in your day-to-day activities.
Table of Contents (7 chapters)

Working with VIM text editor

In this section, we will learn how to install the vi improved, for short VIM, text editor. We will also learn all the basics of using VIM. The most simple text editor one can imagine is, this creates a new file my-lorum-file with the content lorem ipsum dollar sit, or you can create a new text file with the cat command interactively as follows

Another Line
this is the third line

Use the string EOF uppercase to stop writing to that file. Now the echo and cat commands are very useful if you need to create text files with just a few words or lines of text. If you need to edit bigger text files or want to compose your own files, for example, read-me files for your projects, it's better to use a real text editor. One of the available text editors in Linux is VIM, or vi improved, which is a very powerful text editor available for every Linux distribution...