The Linux Command Line, 2nd Edition

Table of contents

1. Cover Page
2. Title Page
3. Copyright Page
4. Dedication
5. About the Author
6. About the Technical Reviewer
7. BRIEF CONTENTS
8. CONTENTS IN DETAIL
9. ACKNOWLEDGMENTS
   1. First Edition
   2. Second Edition
10. INTRODUCTION
    1. Why Use the Command Line?
    2. What This Book Is About
    3. Who Should Read This Book
    4. What’s in This Book
    5. How to Read This Book
    6. What’s New in the Second Edition
    7. Your Feedback Is Needed!
11. PART I: LEARNING THE SHELL
12. 1 WHAT IS THE SHELL?
    1. Terminal Emulators
    2. Making Your First Keystrokes
    3. Try Some Simple Commands
    4. Ending a Terminal Session
    5. Summing Up
13. 2 NAVIGATION
    1. Understanding the File System Tree
    2. The Current Working Directory
    3. Listing the Contents of a Directory
    4. Changing the Current Working Directory
    5. Summing Up
14. 3 EXPLORING THE SYSTEM
    1. More Fun with ls
    2. Determining a File’s Type with file
    3. Viewing File Contents with less
    4. Taking a Guided Tour
    5. Symbolic Links
    6. Hard Links
    7. Summing Up
15. 4 MANIPULATING FILES AND DIRECTORIES
    1. Wildcards
    2. mkdir—Create Directories
    3. cp—Copy Files and Directories
    4. mv—Move and Rename Files
    5. rm—Remove Files and Directories
    6. ln—Create Links
    7. Building a Playground
    8. Summing Up
16. 5 WORKING WITH COMMANDS
    1. What Exactly Are Commands?
    2. Identifying Commands
    3. Getting a Command’s Documentation
    4. Creating Our Own Commands with alias
    5. Summing Up
17. 6 REDIRECTION
    1. Standard Input, Output, and Error
    2. Redirecting Standard Output
    3. Redirecting Standard Error
    4. Redirecting Standard Input
    5. Pipelines
    6. Summing Up
18. 7 SEEING THE WORLD AS THE SHELL SEES IT
    1. Expansion
    2. Quoting
    3. Summing Up
19. 8 ADVANCED KEYBOARD TRICKS
    1. Command Line Editing
    2. Completion
    3. Using History
    4. Summing Up
20. 9 PERMISSIONS
    1. Owners, Group Members, and Everybody Else
    2. Reading, Writing, and Executing
    3. Changing Identities
    4. Exercising Our Privileges
    5. Changing Your Password
    6. Summing Up
21. 10 PROCESSES
    1. How a Process Works
    2. Viewing Processes
    3. Controlling Processes
    4. Signals
    5. Shutting Down the System
    6. More Process-Related Commands
    7. Summing Up
22. PART II: CONFIGURATION AND THE ENVIRONMENT
23. 11 THE ENVIRONMENT
    1. What Is Stored in the Environment?
    2. How Is the Environment Established?
    3. Modifying the Environment
    4. Summing Up
24. 12 A GENTLE INTRODUCTION TO VI
    1. Why We Should Learn vi
    2. A Little Background
    3. Starting and Stopping vi
    4. Editing Modes
    5. Moving the Cursor Around
    6. Basic Editing
    7. Search-and-Replace
    8. Editing Multiple Files
    9. Saving Our Work
    10. Summing Up
25. 13 CUSTOMIZING THE PROMPT
    1. Anatomy of a Prompt
    2. Trying Some Alternative Prompt Designs
    3. Adding Color
    4. Moving the Cursor
    5. Saving the Prompt
    6. Summing Up
26. PART III: COMMON TASKS AND ESSENTIAL TOOLS
27. 14 PACKAGE MANAGEMENT
    1. Packaging Systems
    2. How a Package System Works
    3. Common Package Management Tasks
    4. Summing Up
28. 15 STORAGE MEDIA
    1. Mounting and Unmounting Storage Devices
    2. Creating New File Systems
    3. Testing and Repairing File Systems
    4. Moving Data Directly to and from Devices
    5. Writing CD-ROM Images
    6. Summing Up
    7. Extra Credit
29. 16 NETWORKING
    1. Examining and Monitoring a Network
    2. Transporting Files over a Network
    3. Secure Communication with Remote Hosts
    4. Summing Up
30. 17 SEARCHING FOR FILES
    1. locate—Find Files the Easy Way
    2. find—Find Files the Hard Way
    3. Summing Up
31. 18 ARCHIVING AND BACKUP
    1. Compressing Files
    2. Archiving Files
    3. Synchronizing Files and Directories
    4. Summing Up
32. 19 REGULAR EXPRESSIONS
    1. What Are Regular Expressions?
    2. grep
    3. Metacharacters and Literals
    4. The Any Character
    5. Anchors
    6. Bracket Expressions and Character Classes
    7. POSIX Character Classes
    8. POSIX Basic vs. Extended Regular Expressions
    9. Alternation
    10. Quantifiers
    11. Putting Regular Expressions to Work
    12. Summing Up
33. 20 TEXT PROCESSING
    1. Applications of Text
    2. Revisiting Some Old Friends
    3. Slicing and Dicing
    4. Comparing Text
    5. Editing on the Fly
    6. Summing Up
    7. Extra Credit
34. 21 FORMATTING OUTPUT
    1. Simple Formatting Tools
    2. Document Formatting Systems
    3. Summing Up
35. 22 PRINTING
    1. A Brief History of Printing
    2. Printing with Linux
    3. Preparing Files for Printing
    4. Sending a Print Job to a Printer
    5. Monitoring and Controlling Print Jobs
    6. Summing Up
36. 23 COMPILING PROGRAMS
    1. What Is Compiling?
    2. Compiling a C Program
    3. Summing Up
37. PART IV: WRITING SHELL SCRIPTS
38. 24 WRITING YOUR FIRST SCRIPT
    1. What Are Shell Scripts?
    2. How to Write a Shell Script
    3. More Formatting Tricks
    4. Summing Up
39. 25 STARTING A PROJECT
    1. First Stage: Minimal Document
    2. Second Stage: Adding a Little Data
    3. Variables and Constants
    4. Here Documents
    5. Summing Up
40. 26 TOP-DOWN DESIGN
    1. Shell Functions
    2. Local Variables
    3. Keep Scripts Running
    4. Summing Up
41. 27 FLOW CONTROL: BRANCHING WITH IF
    1. if Statements
    2. Exit Status
    3. Using test
    4. A More Modern Version of test
    5. (( ))—Designed for Integers
    6. Combining Expressions
    7. Control Operators: Another Way to Branch
    8. Summing Up
42. 28 READING KEYBOARD INPUT
    1. read—Read Values from Standard Input
    2. Validating Input
    3. Menus
    4. Summing Up
    5. Extra Credit
43. 29 FLOW CONTROL: LOOPING WITH WHILE/UNTIL
    1. Looping
    2. Breaking Out of a Loop
    3. Reading Files with Loops
    4. Summing Up
44. 30 TROUBLESHOOTING
    1. Syntactic Errors
    2. Logical Errors
    3. Testing
    4. Debugging
    5. Summing Up
45. 31 FLOW CONTROL: BRANCHING WITH CASE
    1. The case Command
    2. Summing Up
46. 32 POSITIONAL PARAMETERS
    1. Accessing the Command Line
    2. Handling Positional Parameters en Masse
    3. A More Complete Application
    4. Summing Up
47. 33 FLOW CONTROL: LOOPING WITH FOR
    1. for: Traditional Shell Form
    2. for: C Language Form
    3. Summing Up
48. 34 STRINGS AND NUMBERS
    1. Parameter Expansion
    2. Arithmetic Evaluation and Expansion
    3. bc—An Arbitrary Precision Calculator Language
    4. Summing Up
    5. Extra Credit
49. 35 ARRAYS
    1. What Are Arrays?
    2. Creating an Array
    3. Assigning Values to an Array
    4. Accessing Array Elements
    5. Array Operations
    6. Associative Arrays
    7. Summing Up
50. 36 EXOTICA
    1. Group Commands and Subshells
    2. Traps
    3. Asynchronous Execution with wait
    4. Named Pipes
    5. Summing Up
51. INDEX