Learning The Bash Shell, 3/e (Paperback)

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Learning The Bash Shell, 3/e (Paperback)

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Description:

O'Reilly's bestselling book on Linux's bash shell
is at it again. Now that Linux is an established player both as a server and
on the desktop Learning the bash Shell has been updated and refreshed
to account for all the latest changes. Indeed, this third edition serves as
the most valuable guide yet to the bash shell. As any good programmer
knows, the first thing users of the Linux operating system come face to face
with is the shell the UNIX term for a user interface to the system. In other
words, it's what lets you communicate with the computer via the keyboard and
display. Mastering the bash shell might sound fairly simple but it isn't. In
truth, there are many complexities that need careful explanation, which is
just what Learning the bash Shell provides. If you are new to
shell programming, the book provides an excellent introduction, covering
everything from the most basic to the most advanced features. And if you've
been writing shell scripts for years, it offers a great way to find out what
the new shell offers. Learning the bash Shell is also full of practical
examples of shell commands and programs that will make everyday use of Linux
that much easier. With this book, programmers will learn:

How to install bash as your login shell

The basics of interactive shell use, including
UNIX file and directory structures, standard I/O, and background jobs

Command line editing, history substitution,
and key bindings
How to customize your shell environment
without programming
The nuts and bolts of basic shell programming,
flow control structures, command-line options and typed variables

Process handling, from job control to
processes, coroutines and subshells
Debugging techniques, such as trace and
verbose modes
Techniques for implementing system-wide shell
customization and features related to system
security
 
Table of
Contents:

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