Copyright
Preface
bash Versions
Summary of bash Features
Intended Audience
Code Examples
Chapter Summary
Conventions Used in This Handbook
We'd Like to Hear from You
Using Code Examples
Safari Enabled
Acknowledgments for the First Edition
Acknowledgments for the Second Edition
Acknowledgments for the Third Edition
Chapter 1. bash Basics
Section 1.1. What Is a Shell?
Section 1.2. Scope of This Book
Section 1.3. History of UNIX Shells
Section 1.4. Getting bash
Section 1.5. Interactive Shell Use
Section 1.6. Files
Section 1.7. Input and Output
Section 1.8. Background Jobs
Section 1.9. Special Characters and Quoting
Section 1.10. Help
Chapter 2. Command-Line Editing
Section 2.1. Enabling Command-Line Editing
Section 2.2. The History List
Section 2.3. emacs Editing Mode
Section 2.4. vi Editing Mode
Section 2.5. The fc Command
Section 2.6. History Expansion
Section 2.7. readline
Section 2.8. Keyboard Habits
Chapter 3. Customizing Your Environment
Section 3.1. The .bash_profile, .bash_logout, and .bashrc Files
Section 3.2. Aliases
Section 3.3. Options
Section 3.4. Shell Variables
Section 3.5. Customization and Subprocesses
Section 3.6. Customization Hints
Chapter 4. Basic Shell Programming
Section 4.1. Shell Scripts and Functions
Section 4.2. Shell Variables
Section 4.3. String Operators
Section 4.4. Command Substitution
Section 4.5. Advanced Examples: pushd and popd
Chapter 5. Flow Control
Section 5.1. if/else
Section 5.2. for
Section 5.3. case
Section 5.4. select
Section 5.5. while and until
Chapter 6. Command-Line Options and Typed Variables
Section 6.1. Command-Line Options
Section 6.2. Typed Variables
Section 6.3. Integer Variables and Arithmetic
Section 6.4. Arrays
Chapter 7. Input/Output and Command-Line Processing
Section 7.1. I/O Redirectors
Section 7.2. String I/O
Section 7.3. Command-Line Processing
Chapter 8. Process Handling
Section 8.1. Process IDs and Job Numbers
Section 8.2. Job Control
Section 8.3. Signals
Section 8.4. trap
Section 8.5. Coroutines
Section 8.6. Subshells
Section 8.7. Process Substitution
Chapter 9. Debugging Shell Programs
Section 9.1. Basic Debugging Aids
Section 9.2. A bash Debugger
Chapter 10. bash Administration
Section 10.1. Installing bash as the Standard Shell
Section 10.2. Environment Customization
Section 10.3. System Security Features
Chapter 11. Shell Scripting
Section 11.1. What's That Do?
Section 11.2. Starting Up
Section 11.3. Potential Problems
Section 11.4. Don't Use bash
Chapter 12. bash for Your System
Section 12.1. Obtaining bash
Section 12.2. Unpacking the Archive
Section 12.3. What's in the Archive
Section 12.4. Who Do I Turn to?
Appendix A. Related Shells
Section A.1. The Bourne Shell
Section A.2. The IEEE 1003.2 POSIX Shell Standard
Section A.3. The Korn Shell
Section A.4. pdksh
Section A.5. zsh
Section A.6. Shell Clones and Unix-like Platforms
Appendix B. Reference Lists
Section B.1. Invocation
Section B.2. Prompt String Customizations
Section B.3. Built-In Commands and Reserved Words
Section B.4. Built-In Shell Variables
Section B.5. Test Operators
Section B.6. set Options
Section B.7. shopt Options
Section B.8. I/O Redirection
Section B.9. emacs Mode Commands
Section B.10. vi Control Mode Commands
Appendix C. Loadable Built-Ins
Appendix D. Programmable Completion
Colophon
Index