Learning The Korn Shell

Overview

The Korn shell is an interactive command and scripting language for accessing Unix® and other computer systems. As a complete and high-level programming language in itself, it's been a favorite since it was developed in the mid 1980s by David G. Korn at AT&T Bell Laboratories. Knowing how to use it is an essential skill for serious Unix users. Learning the Korn Shell shows you how to use the Korn shell as a user interface and as a programming environment.Writing applications is often easier and quicker with ...

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Learning the Korn Shell

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Overview

The Korn shell is an interactive command and scripting language for accessing Unix® and other computer systems. As a complete and high-level programming language in itself, it's been a favorite since it was developed in the mid 1980s by David G. Korn at AT&T Bell Laboratories. Knowing how to use it is an essential skill for serious Unix users. Learning the Korn Shell shows you how to use the Korn shell as a user interface and as a programming environment.Writing applications is often easier and quicker with Korn than with other high-level languages. Because of this, the Korn shell is the most often used shell in commercial environments and among inexperienced users. There are two other widely used shells, the Bourne shell and the C shell. The Korn shell, or ksh, has the best features of both, plus many new features of its own. ksh can do much to enhance productivity and the quality of a user's work, both in interacting with the system, and in programming. The new version, ksh93, has the functionality of other scripting languages such as awk, icon, Perl, rexx, and tcl.Learning the Korn Shell is the key to gaining control of the Korn shell and becoming adept at using it as an interactive command and scripting language. Prior programming experience is not required in order to understand the chapters on basic shell programming. Readers will learn how to write many applications more easily and quickly than with other high-level languages. In addition, readers will also learn about Unix utilities and the way the Unix operating system works in general. The authors maintain that you shouldn't have to be an internals expert to use and program the shell effectively.The second edition covers all the features of the current version of the Korn shell, including many new features not in earlier versions of ksh93, making it the most up-to-date reference available on the Korn shell. It compares the current version of the Korn shell to several other Bourne-compatible shells, including several Unix emulation environments for MS-DOS and Windows. In addition, it describes how to download and build ksh93 from source code.A solid offering for many years, this newly revised title inherits a long tradition of trust among computer professionals who want to learn or refine an essential skill.


Presents the Korn shell for users a step above the beginner level. You learn how to use the shell interactively, and you also learn how to program in the shell to be able to write efficient scripts. An appendix provides information on other shells. Shell script programming is demonstrated via a practical example from a script debugger.

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Product Details

  • ISBN-13: 9780596001957
  • Publisher: O'Reilly Media, Incorporated
  • Publication date: 4/30/2002
  • Edition description: Second Edition
  • Edition number: 2
  • Pages: 434
  • Product dimensions: 7.00 (w) x 9.19 (h) x 0.80 (d)

Meet the Author

Arnold Robbins, an Atlanta native, is a professional programmer and technical author. He has worked with Unix systems since 1980, when he was introduced to a PDP-11 running a version of Sixth Edition Unix. He has been a heavy AWK user since 1987, when he became involved with gawk, the GNU project's version of AWK. As a member of the POSIX 1003.2 balloting group, he helped shape the POSIX standard for AWK. He is currently the maintainer of gawk and its documentation. He is also coauthor of the sixth edition of O'Reilly's Learning the vi Editor. Since late 1997, he and his family have been living happily in Israel.

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Table of Contents

Dedication

Preface

Chapter 1: Korn Shell Basics

Chapter 2: Command-Line Editing

Chapter 3: Customizing Your Environment

Chapter 4: Basic Shell Programming

Chapter 5: Flow Control

Chapter 6: Command-Line Options and Typed Variables

Chapter 7: Input/Output and Command-Line Processing

Chapter 8: Process Handling

Chapter 9: Debugging Shell Programs

Chapter 10: Korn Shell Administration

Related Shells

Reference Information

Building ksh from Source Code

AT&T ast Source Code License Agreement

Colophon

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  • Anonymous

    Posted July 28, 2005

    Very poor book

    This book is too wordy, and there is too many jumping around. For simple case, the author explains it in very complicated manner. I cannot keep on reading the book.

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