Christine Bresnahan - LPI Linux Essentials Study Guide: Exam 010 v1.6

Christine Bresnahan

Richard Blum

Copyright 2020 by John Wiley & Sons, Inc., Indianapolis, Indiana

Published simultaneously in Canada

ISBN: 978-1-119-65769-9
ISBN: 978-1-119-65770-5 (ebk.)
ISBN: 978-1-119-65771-2 (ebk.)

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Dedicated to the loving memory of Kevin E. Ryan, our longtime technical editor and friend. Kevin's gentle correction and guidance helped make our work better. His contributions will be missed.

As iron sharpens iron, so one man sharpens another. Proverbs 27:17 (NIV)

First, all glory and praise go to God, who through His Son, Jesus Christ, makes all things possible, and gives us the gift of eternal life.

Many thanks go to the fantastic team of people at Sybex for their outstanding work on this project. Thanks to Devon Lewis, the acquisitions editor, for offering us the opportunity to work on this book. Also thanks to Stephanie Barton, the development editor, for keeping things on track and making the book more presentable. Thanks, Steph, for all your hard work and diligence. The technical editor, Jason Eckert, did a wonderful job of double-checking all the work in the book in addition to making suggestions to improve the content. We would also like to thank Carole Jelen at Waterside Productions, Inc., for arranging this opportunity for us and for helping us out in our writing careers.

Christine would particularly like to thank her husband, Timothy, for his encouragement, patience, and willingness to listen, even when he has no idea what she is talking about.

Rich would particularly like to thank his wife, Barbara, for enduring his grouchy attitude during this project and helping to keep up his spirits with baked goods.

Christine Bresnahan started working with computers more than 30 years ago in the IT industry as a systems administrator. Christine is an adjunct professor at Ivy Tech Community College, where she teaches Linux certification and Python programming classes. She also writes books and produces instructional resources for the classroom.

Richard Blum has also worked in the IT industry for more than 30 years as both a system and network administrator, and he has published numerous Linux and open source books. Rich is an online instructor for Linux and web programming courses that are used by colleges and universities across the United States. When he is not being a computer nerd, Rich enjoys spending time with his wife, Barbara, and his two daughters, Katie and Jessica.

This book you hold in your hands provides a solid introduction to the Linux operating system. As its title suggests, it will give you the essential knowledge to begin using and managing this powerful operating system (OS), which is an important one in todays computing world.

The Linux Professional Institute, or LPI (lpi.org), offers a series of Linux certifications. These certifications aim to provide proof of skill levels for employers; if youve passed a particular certification, you should be competent to perform certain tasks on Linux computers. The LPI exams include Linux Essentials, LPIC-1, LPIC-2, and the LPIC-3 series. As the name implies, the Linux Essentials exam is the lowest level of the four exams, covering the most basic tasks of using and administering a Linux computer.

The purpose of this book is to help you pass the Linux Essentials exam, updated in 2019 to version 1.6. The Linux Essentials exam is meant to certify that you:

• Understand the open source industry
• Have knowledge of the most popular open source applications
• Understand the major components of Linux
• Can work at the Linux command line
• Have basic knowledge of security and administration-related concepts
• Know where to go for help

With the growing popularity of Linux (and the increase in Linux-related jobs) comes hype. With all the hype that surrounds Linux its become hard for employers to distinguish between employees who are competent Linux users and those who just know the buzzwords. This is where the Linux Essentials certification comes in.