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• Title Page
• Copyright
• Contents
• Introduction
• What Is Linux?
• What Is the Linux Essentials Certification?
• Who Should Read This Book?
• How This Book Is Organized
• Conventions Used in This Book
• 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 Mac OS X
• Comparing Linux to Windows
• What Is a Distribution?
• Creating a Complete Linux-Based OS
• Exploring Common Linux Distributions
• Understanding Release Cycles
• 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
• Chapter 3 Investigating Linux’s Principles and Philosophy
• Exploring 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
• Embedded Computers
• Desktop and Laptop Computers
• Server Computers
• 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
• Chapter 5 Managing Hardware
• Learning about Your CPU
• Understanding CPU Families
• Identifying Your CPU
• Identifying Motherboard Capabilities
• Sizing Your Power Supply
• Understanding Disk Issues
• Understanding 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
• Chapter 6 Getting to Know the Command Line 
• Starting a Command Line
• Launching a Terminal
• Logging into a Text-Mode Console
• Running Programs
• 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
• Chapter 7 Managing Files 
• Understanding Where Things Go
• User Files vs. System Files
• The Filesystem Hierarchy Standard
• Important Directories and Their Contents
• Navigating 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
• 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
• Chapter 9 Exploring Processes and Process Data 
• Understanding Package Management
• 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
• Chapter 10 Editing Files 
• Understanding the Role of Text Files
• Choosing an Editor
• Launching an Editor
• Editing Files with pico or 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
• 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
• 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
• 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
• 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
• Chapter 15 Managing Network Connections
• Understanding Network Features
• Configuring a Network Connection
• Deciding Whether to Use DHCP
• Creating a Wi-Fi Connection
• Using a Network Configuration GUI
• Using Text-Based Tools
• Testing Your Network Connection
• Checking Your Routing Table
• Testing Basic Connectivity
• Finding Breaks in Connectivity
• Testing DNS
• Checking Your Network Status
• Protecting Your System from the Bad Guys
• Appendix A Answers to Review Questions
• Chapter 1
• Chapter 2
• Chapter 3
• Chapter 4
• Chapter 5
• Chapter 6
• Chapter 7
• Chapter 8
• Chapter 9
• Chapter 10
• Chapter 11
• Chapter 12
• Chapter 13
• Chapter 14
• Chapter 15
• Appendix B LPI’s Certification Program
• The Linux Essentials Certification
• Certification Objectives Map
• Index
• EULA