Learning the Korn Shell, 2nd Edition
Publisher: O'Reilly Media
Final Release Date: April 2002
Pages: 434

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.

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oreillyLearning the Korn Shell, 2nd Edition
 
3.8

(based on 4 reviews)

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5.0

Great for learning and reference

By DevOps Dov

from Phoenix, Arizona

About Me Developer, Sys Admin

Verified Reviewer

Pros

  • Accurate
  • Concise
  • Easy to understand
  • Helpful examples
  • Well-written

Cons

    Best Uses

    • Desk Reference
    • Expert
    • Intermediate
    • Learning Tutorial
    • Novice
    • Student

    Comments about oreilly Learning the Korn Shell, 2nd Edition:

    My work (and some of my play!) involves Unix sysadmin on various platforms with a heavy emphasis on cross-platform systems programming and automation. My preferred login is ksh which I've used on and off for over 20 years. Increasingly I've been using ksh to model functionality that will later be ported to an automation platform or compiled code. This book contains a lot of great tips & tricks that have greatly expanded my usage and efficiency with ksh as a programming environment. Another reviewer mentioned that the book is light on examples, though I've not found this to be the case. The examples in the book include useful conceptual snippets along with (multiple!) full-blown (and very useful) programs that illustrate not only specific usage but teach creative ways of thinking about programming problems.

    Because the shell is still in active development (with several work-alike shells out there), a printed book can never be completely up-to-date, but this one certainly gives the tools to learn the shell and then stay current.

    Highly recommended as a companion to the Korn & Bolsky KSH Command_&_Programming_Language book.

     
    4.0

    Good source of learning

    By ksh

    from India

    About Me Sys Admin

    Pros

    • Accurate
    • Concise
    • Easy to understand
    • Helpful examples
    • Well-written

    Cons

      Best Uses

      • Intermediate
      • Novice
      • Student

      Comments about oreilly Learning the Korn Shell, 2nd Edition:

      I have to work in ksh on a regular basis this book provides a complete reference right from the basics to get you upto a comfortable level of understanting

      Thank You!!!

      (4 of 4 customers found this review helpful)

       
      5.0

      Great book for learning and reference

      By driftnet

      from Undisclosed

      Comments about oreilly Learning the Korn Shell, 2nd Edition:

      I picked up this book after a Korn shell scripting class to develop my skills a bit further, and it definitely paid off. This is a great book for learning the Korn shell as well as for reference, and it comes with a little folding quick reference guide to the shell that is a great help when you are writing scripts. I've had this book for about six months now, I refer to it constantly, and I highly recommend it.

      (2 of 8 customers found this review helpful)

       
      1.0

      Learning the Korn Shell, 2nd Edition Review

      By Leon

      from Undisclosed

      Comments about oreilly Learning the Korn Shell, 2nd Edition:

      I didn't really like this book. I've read through 4 chapters, and gave up. Too much theory, very few examples. Examples and explanations are very confusing. I wouldn't recommend this book as reference or as a study guide.

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