David A. Williams has 4 audiobooks on Listento.it, narrated by 3 narrators. The most-rated is Linux Command Line: Beginners Guide to Learn Linux Commands and Shell Scripting.
Linux Administration
Summary
Have you always wondered how the Internet works and where do websites truly reside? Have you given a thought to the actual computer where the complete website for Facebook is stored and what all goes into the making of that server? This book will answer all your questions. Most of the websites that you see on the Internet today are hosted on a web server. A web server is just like the computer you have at home, with the exception that it is way more powerful. Just like you have a disk drive and RAM on your personal computer, there are multiple disks and RAMs on a web server. These disks have partitions created on them, just like your personal computer. At home, you may have you and your brother who use the computer, which means there are two users. A web server is a system where there are multiple users logged in at the same time and doing their work in parallel. Almost all the web servers in the world run on an operating system known as Linux. Consider a shopping website such as Amazon, which has users in the count of millions visiting it every minute. Now, this website is hosted on a Linux web server, and if the server were to shut down suddenly, it would leave these million users irritated, and it would eventually mean a loss in millions of dollars for the company. To make sure such a Linux web server goes through minimum or no downtime at all, there are people known as system administrators who are employed to ensure that the server is up all the time. They do various tasks on the server in the background while you are happily shopping in the foreground. This book will help you gain insightful knowledge on the tasks that system administrators perform on a Linux system to maintain it and to ensure that it never encounters any downtime. Before you take a deep dive into the world of Linux system administration, we would like to give you a quick glance of what you can expect from this book. Throughout this book, you will gain knowledge about: Automating a Red Hat Enterprise Linux 7 installation A more elaborate and detailed study about grep and vim Scheduling future tasks using cron Managing Linux security through SELinux and Access Control Lists Creating users at the network level Disk partitioning Troubleshooting common issues encountered during Linux boot time Given that you have gone through our first book in the Linux Administration series, you can use this book to advance to the next level of Linux Administration. So don’t just wait and think. Grab a copy of this book right away.
©2019 David A. Williams (P)2020 David A. Williams
Linux Administration
Summary
Have you ever wanted to become a Linux system administrator? Or did you want to learn more about the operating system? If you answered yes to these questions, you have come to the right place. The motive of this book is to get you well versed with the Linux operating system and the profile known to the world as Linux system administration. A Linux system admin is basically a superhero who owns the servers of an organization and makes sure that they never go down. Servers in an organization contain user data, which is the most important thing in the modern world. Loss of data can result in huge losses for an organization and even lawsuits. Over the course of the book, you will gather information about the following: This book will prepare you with the knowledge that is essential to enter the field of Linux system administration. You will learn about the operating system called Red Hat Enterprise Linux 7 and how to install it. After installing you will learn about the tasks that are essential for a system in their day-to-day life. You will learn about the command line in Linux, which is used extensively by system admins to perform tasks using important commands. You will further get to know about the Linux File System hierarchy and how to navigate your way through files and directories in the Linux operating system. You will also understand how processes work in the Linux system and how you can use commands and signals to manage system processes as well as processes started manually. You will learn about SSH, which is one of the most used tools in Linux systems to create secure connections between two Linux systems on a private network or over the Internet. You will study how to analyze logs in the Linux system and how to read them to understand errors and how to fix those errors. And much more! All in all, the book is aimed at preparing you to enter the world of Linux system administration such that you can pursue a career in an organization.
©2019 David A. Williams (P)2019 David A. Williams
Linux Command Line
Summary
Linux is growing day by day, not only on servers but in desktop environments, too. We designed this book for beginners to intermediate experts on shell scripting. It is for Linux administrators and users today looking for more and more practical examples, along with more theoretical knowledge. This book will take readers through practical examples for clarity of each of the concepts by going through each line of the script. There are lots of examples that anyone can execute on their system and get to see the execution of scripts. You don’t have to be an expert. Most administrators are looking for more automation and run complex queries to save time and to increase productivity. Shell is the only way to get accomplished at this. This book will take administrators from the graphical interface to the command-line interface and explain the concepts of how things work on the operating system behind the graphics. This book is written by someone who has had practical experience on scripting for over 20 years. Upon completion, you will be able to write your own script by using basic to complex logic. This book will cover all the areas that fall under scripting, including: Usage of statements You will learn what operators are and how to perform arithmetic operations. The power of loops and how to use loops in combinations to create magic within the system What functions are and how to use them in different modes How signals and traps can automate file management and other administrative tasks A guide on how to debug your system with multiple options It explains every concept with practical examples. Users can keep this handbook as a quick reference guide to use as a future resource. You will be confident about how to create a new script and understand any script or change it to whatever script is needed, which is the core power of any system administrator. So what are you waiting for? Now is the time to get started.
©2019 David A. Williams (P)2020 David A. Williams
Linux Command Line: Beginners Guide to Learn Linux Commands and Shell Scripting
Summary
There is no shortage of books on the market that offer all the information to become a pro in using the Linux operating system. Some claim to have the key to feed everything into your brain in a single read, while others pretend to have grasped all the possible commands and programs available for Linux. But do they appeal to intelligent person? No, they just fail to make a mark on the brains of smart computer users who want more practical information rather than theory. Most books are based on mere theoretical information rather than practical exercises, which becomes their weakness when it comes to being popular among readers. This audiobook doesn’t promise to make you a Linux expert in 24 hours - rather it tends to put you on the right track by helping you understand what a Command Line Interface (CLI) is and how it differs from the Graphical User Interface (GUI). You will be able to learn the shell system and how much control you can have over your computer. Let’s take a look what this audiobook has to offer: Basic commands about file navigation and similar tasks Command line exercises with solutions An overview of system configuration and Linux environment Analysis of Linux environment variables The basics of shell scripting Advanced level shell scripting that is used to write programs This audiobook offers you the opportunity to try and test different commands in a real Linux environment. It will help you get started with the Linux environment by educating you on basic commands. The world is changing and so is the basic approach of human beings toward technology. As the tech world gains steam, so should the users. Linux is the best alternative as a well-protected operating system. Linux Command Line: Beginners Guide to Learn Linux Commands and Shell Scripting is the one handy tool to learn Linux in a short timeframe.
©2019 David A. Williams (P)2019 David A. Williams