Preface
1. bash Basics
What Is a Shell?
Scope of This Book
History of UNIX Shells
Getting bash
Interactive Shell Use
Files
Input and Output
Background Jobs
Special Characters and Quoting
Help
2. Command-Line Editing
Enabling Command-Line Editing
The History List
emacs Editing Mode
vi Editing Mode
The fc Command
History Expansion
readline
Keyboard Habits
3. Customizing Your Environment
The .bash_profile, .bash_logout, and .bashrc Files
Aliases
Options
Shell Variables
Customization and Subprocesses
Customization Hints
4. Basic Shell Programming
Shell Scripts and Functions
Shell Variables
String Operators
Command Substitution
Advanced Examples: pushd and popd
5. Flow Control
if/else
for
case
select
while and until
6. Command-Line Options and Typed Variables
Command-Line Options
Typed Variables
Integer Variables and Arithmetic
Arrays
7. Input/Output and Command-Line Processing
I/O Redirectors
String I/O
Command-Line Processing
8. Process Handling
Process IDs and Job Numbers
Job Control
Signals
trap
Coroutines
Subshells
Process Substitution
9. Debugging Shell Programs
Basic Debugging Aids
A bash Debugger
10. bash Administration
Installing bash as the Standard Shell
Environment Customization
System Security Features
11. Shell Scripting
What's That Do?
Starting Up
Potential Problems
Don't Use bash
12. bash for Your System
Obtaining bash
Unpacking the Archive
What's in the Archive
Who Do I Turn to?
A. Related Shells
The Bourne Shell
The IEEE 1003.2 POSIX Shell Standard
The Korn Shell
pdksh
zsh
Shell Clones and Unix-like Platforms
B. Reference Lists
Invocation
Prompt String Customizations
Built-In Commands and Reserved Words
Built-In Shell Variables
Test Operators
set Options
shopt Options
I/O Redirection
emacs Mode Commands
vi Control Mode Commands
C. Loadable Built-Ins
D. Programmable Completion
Index