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