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)

Navigating the Linux filesystem

In this section, you will learn how to navigate the Linux filesystem. You will also learn how the Linux filesystem is structured. If we print out the folder structure of the top-level directories beneath the root directory by executing the tree -d -L 1 / command, you will see a list of strange-sounding directory names. These directory names are the same on any Linux distribution and they follow a standard called the filesystem hierarchy standard (FHS). Each of these standard directories in the Linux filesystem has a specific purpose, and the user can expect certain files in certain locations, and it also means that a program can predict where the files are located, and it also means that any program working with those system directories can predict where the files are located. The following are the directories:

  • The / slash is the primary hierarchy...