Provides a solid foundation for those considering a career in IT―covers the objectives of the new Linux Essentials Exam 010-160 v1.6
Linux is a secure, reliable, open source alternative to costly operating systems such as Microsoft Windows. As large organizations worldwide continue to add Linux servers, the need for IT professionals skilled in Linux continues to grow. The LPI Linux Essentials Study Guide is a valuable resource for anyone preparing to take the new Linux Essentials Exam―the entry-level certification from The Linux Professional Institute (LPI) which validates knowledge of Linux concepts and applications.
Written by recognized experts on Linux and open source technologies, this accessible, user-friendly guide covers desktop skills, the command line, directories and files, networks, scripting, security, users and permissions, and much more. Clear, concise chapters provide numerous hands-on tutorials, real-world examples, color illustrations, and practical end-of-chapter exercises and review questions. An ideal introduction for those new to Linux or considering a career in IT, this guide helps readers:
• Learn the operation and components of Linux desktops and servers
• Understand open source software, licensing, and applications
• Configure networks, security, cloud services, storage, and devices
• Create users and groups and set permissions and ownership
• Use the command line and build automation scripts
LPI Linux Essentials Study Guide: Exam 010 v1.6 is perfect for anyone beginning a career in IT, newcomers to Linux, students in computer courses, and system administrators working with other operating systems wanting to learn more about Linux and other open source solutions.
Author(s): Christine Bresnahan, Richard Blum
Edition: 3
Publisher: Sybex
Year: 2020
Language: English
Commentary: Vector PDF
Pages: 416
City: Indianapolis, IN
Tags: Linux; Command Line; Security; Filesystems; Linux Kernel; Networking; Access Management; Regular Expressions; Productivity; Process Management; User Management; Shell Scripting; Hardware Configuration; Elementary; FOSS; Software Licenses
LPI Linux Essentials Study Guide
Acknowledgments
About the Authors
Contents at a Glance
Contents
Introduction
Assessment Test
Answers to Assessment Test
Chapter 1 Selecting an Operating System
What Is an OS?
What Is a Kernel?
What Else Identifies an OS?
Investigating User Interfaces
Using a Text-Mode User Interface
Using a Graphical User Interface
Where Does Linux Fit in the OS World?
Comparing Linux to Unix
Comparing Linux to macOS
Comparing Linux to Windows
What Is a Distribution?
Creating a Complete Linux-Based OS
A Summary of Common Linux Distributions
Understanding Release Cycles
Embedded Linux Systems
Linux in the Cloud
What Is Cloud Computing?
What Are the Cloud Services?
Summary
Exam Essentials
Review Questions
Chapter 2 Understanding Software Licensing
Investigating Software Licenses
Exploring Copyright Protection and Software
Using Licenses to Modify Copyright Terms
Looking at the Free Software Foundation
Understanding the FSF Philosophy
Examining Free Software and the GPL
Looking at the Open Source Initiative
Understanding the Open Source Philosophy
Defining Open Source Software
Looking at the Creative Commons
Using Open Source Licenses
Understanding Open Source Licenses
Understanding Open Source Business Models
Summary
Exam Essentials
Review Questions
Chapter 3 Investigating Linux’s Principles and Philosophy
Linux Through the Ages
Understanding Linux’s Origins
Seeing Today’s Linux World
Using Open Source Software
Understanding Basic Open Source Principles
Linux as a Software Integrator
Understanding OS Roles
Looking At Embedded Computers
Exploring Desktop and Laptop Computers
Investigating Server Computers
Summary
Exam Essentials
Review Questions
Chapter 4 Using Common Linux Programs
Using a Linux Desktop Environment
Choosing a Desktop Environment
Launching Programs
Using a File Manager
Working with Productivity Software
Finding the Right Tool for the Job
Using a Web Browser
Using Email Clients
Using Office Tools
Using Multimedia Applications
Using Linux for Cloud Computing
Using Mobile Applications
Using Server Programs
Identifying Common Server Protocols and Programs
Focusing on Web Servers
Installing and Launching Servers
Securing Servers
Managing Programming Languages
Choosing a Compiled vs. an Interpreted Language
Identifying Common Programming Languages
Handling Software Packages
Understanding Software Packages
Identifying Common Package Tools
Summary
Exam Essentials
Review Questions
Chapter 5 Getting to Know the Command Line
Starting a Command Line
Launching a Terminal
Logging into a Text-Mode Console
Running Programs
Understanding Text-Mode Program Syntax
Running Text-Mode Programs
Running GUI Programs
Running Programs in the Background
Using Shell Features
Using Command Completion
Using Command History
Getting Help Using Man Pages
Understanding the Purpose of Man Pages
Locating Man Pages by Section Number
Searching for a Man Page
Reading Man Pages
Using less
Getting Help Using Info Pages
Understanding the Purpose of Info Pages
Reading Info Pages
Finding Additional Documentation
Locating Program Documentation on Your Computer
Locating Program Documentation Online
Consulting Experts
Summary
Exam Essentials
Review Questions
Chapter 6 Managing Hardware
Learning About Your CPU
Understanding CPU Families
Identifying Your CPU
Identifying Motherboard Capabilities
Sizing Your Power Supply
Understanding Disk Issues
Disk Interfaces
Partitioning a Disk
Understanding Filesystem Issues
Using Removable and Optical Disks
Managing Displays
Understanding the Role of X
Using Common Display Hardware
Handling USB Devices
Managing Drivers
Understanding Types of Drivers
Locating and Installing Drivers
Summary
Exam Essentials
Review Questions
Chapter 7 Managing Files
Understanding Where Things Go
User Files vs. System Files
The Filesystem Hierarchy Standard
Important Directories and Their Contents
Exploring Files and Directories
Obtaining File Listings
Changing Directories
Using Absolute and Relative File References
Manipulating Files
Creating Files
Copying Files
Moving and Renaming Files
Using Links
Deleting Files
Using Wildcards
Understanding Case Sensitivity
Manipulating Directories
Creating Directories
Deleting Directories
Managing Directories
Summary
Exam Essentials
Review Questions
Chapter 8 Searching, Extracting, and Archiving Data
Using Regular Expressions
Searching For and Extracting Data
Using grep
Using find
Using wc
Using cut
Using sort
Using cat
Redirecting Input and Output
Using Basic Redirection Operators
Using Pipes
Generating Command Lines
Archiving Data
Using tar
Using Compression
Using zip
Summary
Exam Essentials
Review Questions
Chapter 9 Exploring Processes and Process Data
Understanding Package Management
Linux Package Management Principles
Understanding Package Systems
Managing Red Hat Systems
Managing Debian Systems
Understanding the Process Hierarchy
Identifying Running Processes
Using ps to Identify Processes
Using top to Identify Processes
Measuring Memory Use
Using Log Files
Locating Log Files
Producing More Verbose Log File Entries
Examining the Kernel Ring Buffer
Summary
Exam Essentials
Review Questions
Chapter 10 Editing Files
Understanding the Role of Text Files
Choosing an Editor
Editing Files with nano
Using Text Editor Conventions
Exploring Basic nano Text-Editing Procedures
Saving Your Changes from nano
Editing Files with vi
Understanding vi Modes
Exploring Basic vi Text-Editing Procedures
Saving Your Changes from vi
Summary
Exam Essentials
Review Questions
Chapter 11 Creating Scripts
Beginning a Shell Script
Using Commands
Using Arguments
Using Variables
Using Conditional Expressions
Using Loops
Using Functions
Setting the Script’s Exit Value
Summary
Exam Essentials
Review Questions
Chapter 12 Understanding Basic Security
Understanding Accounts
Understanding Account Features
Identifying Accounts
Understanding Groups
Using Account Tools
Discovering Your Own Identity
Learning Who’s Online
Working as root
Understanding User Types
Acquiring root Privileges
Using root Privileges Safely
Summary
Exam Essentials
Review Questions
Chapter 13 Creating Users and Groups
Creating New Accounts
Deciding on a Group Strategy
Selecting a Good Password
Creating Accounts Using GUI Tools
Creating Accounts from the Shell
Modifying Accounts
Deciding When to Modify Accounts
Checking for Logged-in Users
Modifying Accounts Using GUI Tools
Modifying Accounts from the Shell
Deleting Accounts
Avoiding Account Deletion Pitfalls
Deleting Accounts Using GUI Tools
Deleting Accounts from the Shell
Managing Groups
Managing Groups Using GUI Tools
Managing Groups from the Shell
Summary
Exam Essentials
Review Questions
Chapter 14 Setting Ownership and Permissions
Setting Ownership
Understanding Ownership
Setting Ownership in a File Manager
Setting Ownership in a Shell
Setting Permissions
Understanding Permissions
Setting Permissions in a File Manager
Setting Permissions in a Shell
Setting the umask
Using Special Permission Bits and File Features
Using Sticky Bits
Using Special Execute Permissions
Hiding Files from View
Viewing Directories
Summary
Exam Essentials
Review Questions
Chapter 15 Managing Network Connections
Configuring Network Features
Graphical Tools
Command-Line Tools
Basic Network Troubleshooting
Sending Test Packets
Finding Host Information
Advanced Network Troubleshooting
The netstat Command
Examining Sockets
Summary
Exam Essentials
Review Questions
Appendix A Answers to Review Questions
Chapter 1: Selecting an Operating System
Chapter 2: Understanding Software Licensing
Chapter 3: Investigating Linux’s Principles and Philosophy
Chapter 4: Using Common Linux Programs
Chapter 5: Getting to Know the Command Line
Chapter 6: Managing Hardware
Chapter 7: Managing Files
Chapter 8: Searching, Extracting, and Archiving Data
Chapter 9: Exploring Processes and Process Data
Chapter 10: Editing Files
Chapter 11: Creating Scripts
Chapter 12: Understanding Basic Security
Chapter 13: Creating Users and Groups
Chapter 14: Setting Ownership and Permissions
Chapter 15: Managing Network Connections
Appendix B Setting Up a Linux Environment
Index
EULA
