An edition of Learning the bash Shell
(1995)
Learning the bash Shell
3rd Edition, covers bash 3.0
by Cameron Newham and Bill Rosenblatt
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Learning the bash Shell, Third Edition, is the definitive guide to bash, the Free Software Foundation's "Bourne Again Shell." It's a freely available replacement for the UNIX Bourne shell, and is the shell of choice for users of Linux, Mac OS X, BSD, and other UNIX systems.
You'll find this guide valuable whether you're interested in bash as a user interface or for its powerful programming capabilities. This book will teach you how to use bash's advanced command-line features, such as command history, command-line editing, and command completion.
This book also introduces shell programming,a skill no UNIX or Linus user should be without. The book demonstrates what you can do with bash's programming features. You'll learn about flow control, signal handling, and command-line processing and I/O. There is also a chapter on debugging your bash programs.
Finally, Learning the bash Shell, Third Edition, shows you how to acquire, install, configure, and customize bash, and gives advice to system administrators managing bash for their user communities.
This Third Edition covers all of the features of bash Version 3.0, while still applying to Versions 1.x and 2.x. It includes a debugger for the bash shell, both as an extended example and as a useful piece of working code. Since shell scripts are a significant part of many software projects, the book also discusses how to write maintainable shell scripts. And, of course, it discusses the many features that have been introduced to bash over the years: one-dimensional arrays, parameter expansion, pattern-matching operations, new commands, and security improvements.
Unfailingly practical and packed with examples and questions for future study, Learning the bash Shell Third Edition is a valuable asset for Linux and other UNIX users.
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Subjects
UNIX shells, User interfaces (Computer systems), UNIX (Computer file), UNIX shell (Computer program), Interfaces utilisateur (informatique), UNIX (système d'exploitation des ordinateurs), Bash Shell (langage de programmation), UNIX Shells (logiciels), Programmation SHELL, UNIX, Shell, Interfaces (informatique), Système exploitation, Operating systems (computers), Unix shells (computer programs), Computer software, Computer security, User interfaces (computer systems), User-Computer Interface, Interfaces utilisateurs (Informatique), COMPUTERS, Operating Systems, Macintosh, UNIX Shells, Unix, General, Com046030, Cs.cmp_sc.app_sw, Cs.cmp_sc.opert_systm, Qa76.76.o63 n458 1998, 005.4/465| Edition | Availability |
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1
Learning the bash Shell
2005 04, O’Reilly Media
Paperback
in English
- 3rd Edition, covers bash 3.0
0596009658 9780596009656
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2
Learning the Bash Shell: Unix Shell Programming
2005, O'Reilly Media, Incorporated
in English
0596555008 9780596555009
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3
Learning the Bash Shell: Unix Shell Programming
2005, O'Reilly Media, Incorporated
in English
0596519060 9780596519063
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4
Learning the bash Shell
March 29, 2005, O’Reilly Media
in English
- 3rd Edition, covers bash 3.0
0596009658 9780596009656
|
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5
Learning the bash Shell
1998, O’Reilly Media
in English
- 2nd Edition, Revised & Updated
1565923472 9781565923478
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6
Learning the bash Shell
1995, O’Reilly & Associates
in English
- 1st Edition
156592147X 9781565921474
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Book Details
Table of Contents
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
1. bash Basics
1.1. What Is a Shell?
1.2. Scope of This Book
1.3. History of UNIX Shells
1.3.1. The Bourne Again Shell
1.3.2. Features of bash
1.4. Getting bash
1.5. Interactive Shell Use
1.5.1. Commands, Arguments, and Options
1.6. Files
1.6.1. Directories
1.6.1.1. The working directory
1.6.1.2. Tilde notation
1.6.1.3. Changing working directories
1.6.2. Filenames, Wildcards, and Pathname Expansion
1.6.3. Brace Expansion
1.7. Input and Output
1.7.1. Standard I/O
1.7.2. I/O Redirection
1.7.3. Pipelines
1.8. Background Jobs
1.8.1. Background I/O
1.8.2. Background Jobs and Priorities
1.9. Special Characters and Quoting
1.9.1. Quoting
1.9.2. Backslash-Escaping
1.9.3. Quoting Quotation Marks
1.9.4. Continuing Lines
1.9.5. Control Keys
1.10. Help
2. Command-Line Editing
2.1. Enabling Command-Line Editing
2.2. The History List
2.3. emacs Editing Mode
2.3.1. Basic Commands
2.3.2. Word Commands
2.3.3. Line Commands
2.3.4. Moving Around in the History List
2.3.5. Textual Completion
2.3.6. Miscellaneous Commands
2.4. vi Editing Mode
2.4.1. Simple Control Mode Commands
2.4.2. Entering and Changing Text
2.4.3. Deletion Commands
2.4.4. Moving Around in the History List
2.4.5. Character-Finding Commands
2.4.6. Textual Completion
2.4.7. Miscellaneous Commands
2.5. The fc Command
2.6. History Expansion
2.7. readline
2.7.1. The readline Startup File
2.7.1.1. readline variables
2.7.2. Key Bindings Using bind
2.8. Keyboard Habits
3. Customizing Your Environment
3.1. The .bash_profile, .bash_logout, and .bashrc Files
3.2. Aliases
3.3. Options
3.3.1. shopt
3.4. Shell Variables
3.4.1. Variables and Quoting
3.4.2. Built-In Variables
3.4.2.1. Editing mode variables
3.4.2.2. Mail variables
3.4.2.3. Prompting variables
3.4.2.4. Command search path
3.4.2.5. Command hashing
3.4.2.6. Directory search path and variables
3.4.2.7. Miscellaneous variables
3.5. Customization and Subprocesses
3.5.1. Environment Variables
3.5.1.1. Terminal types
3.5.1.2. Other common variables
3.5.2. The Environment File
3.6. Customization Hints
4. Basic Shell Programming
4.1. Shell Scripts and Functions
4.1.1. Functions
4.2. Shell Variables
4.2.1. Positional Parameters
4.2.1.1. Positional parameters in functions
4.2.2. Local Variables in Functions
4.2.3. Quoting with $@ and $*
4.2.4. More on Variable Syntax
4.3. String Operators
4.3.1. Syntax of String Operators
4.3.2. Patterns and Pattern Matching
4.3.3. Length Operator
4.3.4. Extended Pattern Matching
4.4. Command Substitution
4.5. Advanced Examples: pushd and popd
5. Flow Control
5.1. if/else
5.1.1. Exit Status
5.1.2. Return
5.1.3. Combinations of Exit Statuses
5.1.4. Condition Tests
5.1.4.1. String comparisons
5.1.4.2. File attribute checking
5.1.5. Integer Conditionals
5.2. for
5.3. case
5.4. select
5.5. while and until
6. Command-Line Options and Typed Variables
6.1. Command-Line Options
6.1.1. shift
6.1.2. Options with Arguments
6.1.3. getopts
6.2. Typed Variables
6.3. Integer Variables and Arithmetic
6.3.1. Arithmetic Conditionals
6.3.2. Arithmetic Variables and Assignment
6.3.3. Arithmetic for Loops
6.4. Arrays
7. Input/Output and Command-Line Processing
7.1. I/O Redirectors
7.1.1. Here-documents
7.1.2. File Descriptors
7.2. String I/O
7.2.1. echo
7.2.1.1. Options to echo
7.2.1.2. echo escape sequences
7.2.2. printf
7.2.2.1. Additional bash printf specifiers
7.2.3. read
7.2.3.1. Reading lines from files
7.2.3.2. I/O redirection and multiple commands
7.2.3.3. Command blocks
7.2.3.4. Reading user input
7.3. Command-Line Processing
7.3.1. Quoting
7.3.2. command, builtin, and enable
7.3.3. eval
8. Process Handling
8.1. Process IDs and Job Numbers
8.2. Job Control
8.2.1. Foreground and Background
8.2.2. Suspending a Job
8.3. Signals
8.3.1. Control-Key Signals
8.3.2. kill
8.3.3. ps
8.3.3.1. System V
8.3.3.2. BSD
8.4. trap
8.4.1. Traps and Functions
8.4.2. Process ID Variables and Temporary Files
8.4.3. Ignoring Signals
8.4.4. disown
8.4.5. Resetting Traps
8.5. Coroutines
8.5.1. wait
8.5.2. Advantages and Disadvantages of Coroutines
8.5.3. Parallelization
8.6. Subshells
8.6.1. Subshell Inheritance
8.6.2. Nested Subshells
8.7. Process Substitution
9. Debugging Shell Programs
9.1. Basic Debugging Aids
9.1.1. Set Options
9.1.2. Fake Signals
9.1.2.1. EXIT
9.1.2.2. ERR
9.1.2.3. DEBUG
9.1.2.4. RETURN
9.1.3. Debugging Variables
9.2. A bash Debugger
9.2.1. Structure of the Debugger
9.2.1.1. The driver script
9.2.1.2. exec
9.2.2. The Preamble
9.2.3. Debugger Functions
9.2.3.1. Commands
9.2.3.2. Stepping
9.2.3.3. Breakpoints
9.2.3.4. Break conditions
9.2.3.5. Execution tracing
9.2.3.6. Debugger limitations
9.2.4. A Sample bashdb Session
9.2.5. Exercises
10. bash Administration
10.1. Installing bash as the Standard Shell
10.1.1. POSIX Mode
10.1.2. Command-Line Options
10.2. Environment Customization
10.2.1. umask
10.2.2. ulimit
10.2.3. Types of Global Customization
10.3. System Security Features
10.3.1. Restricted Shell
10.3.2. A System Break-In Scenario
10.3.3. Privileged Mode
11. Shell Scripting
11.1. What’s That Do?
11.1.1. Comments
11.1.2. Variables and Constants
11.2. Starting Up
11.3. Potential Problems
11.4. Don’t Use bash
12. bash for Your System
12.1. Obtaining bash
12.2. Unpacking the Archive
12.3. What’s in the Archive
12.3.1. Documentation
12.3.2. Configuring and Building bash
12.3.3. Testing bash
12.3.4. Potential Problems
12.3.5. Installing bash as a Login Shell
12.3.6. Examples
12.4. Who Do I Turn to?
12.4.1. Asking Questions
12.4.2. Reporting Bugs
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
A.6.1. Cygwin
A.6.2. DJGPP
A.6.3. MKS Toolkit
A.6.4. AT&T UWIN
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
C. Loadable Built-Ins
D. Programmable Completion
Index
About the Author
Colophon
Copyright
Edition Notes
Includes index.
Classifications
External Links
The Physical Object
ID Numbers
Community Reviews (0)
Feedback?
History
- Created October 7, 2008
- 16 revisions
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