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Learning the Korn Shell (2nd Edition)
Books: Computers: Korn Shell: Item 3
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Learning the Korn Shell (2nd Edition)by Bill Rosenblatt and Arnold Robbins
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5 of 5 people found the following review helpful: The Second Book of UNIX(r), October 21, 2004 Reviewer:Vincent Poirier (Tokyo, Japan) - If your job requires you to perform some tasks in UNIX but you know very little beyond the level a beginner's guide gave you (e.g. cd and ls) then Learning the Korn Shell will let you build on those basics to the point where you'll be able to program shell scripts. You'll start with a quick explanation of what a shell is (i.e. it's a user interface, not the OS itself) then useful key strokes (avoid CTRL-D) and how Korn parses the command line. The book then explains how you can set up your environment and then moves into basic shell scripting. By the end of the book, you'll be able to read and edit the scripts along with your more experienced colleagues. Highly recommended.
Book Description
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.
Book Info
Covers all the features of the current version of the Korn shell, including many new features not in earlier versions of ksh93. The most up to date reference available on the Korn shell. Previous edition c1993. Softcover.
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