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The New Kornshell: Command and Programming Language
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About The New Kornshell: Command And Programming Language
Product Description This is a Second Edition of the best-selling guide to the KornShell command and programming language by the original inventors of the language. It provides a specification for the KornShell language, tutorial material for those new to ksh (the program that implements the KornShell language), and a comprehensive reference for all ksh users. Covers major new additions to the KornShell language ksh93 (including command completion and a key binding mechanism); provides tutorials for both of the functions of ksh (as an interactive command language, and as a programming language); contains numerous examples illustrating the features of ksh; and features a Quick Reference summary of the KornShell language with page references to the book. For both new users with little shell experience, and for experienced computer users who are familiar with ksh and/or other shells. ISBN of 1st Edition: 0-13-516972-02. From the Publisher This is a Second Edition of the best-selling guide to the KornShell command and programming languge by the original inventors of the language. It provides a specification for the KornShell language, tutorial material for those new to ksh (the program that implements the KornShell language), and a comprehensive reference and for all ksh users. From the Inside Flap This second edition of the KornShell book is the specification of the revised KornShell language and a reference handbook for ksh, the program that implements the KornShell language. The language has undergone major changes and additions since the first edition. The new features of the language have increased the scope of applications that are suitable for writing in ksh. In addition, command completion and a key binding mechanism have been added to this version of ksh. This book also contains a Tutorial that describes both of the functions of ksh: as an interactive command language, and as a programming language. It contains numerous examples illustrating the features of ksh, and many chapters have exercises. It also contains a Quick Reference summary of the KornShell language, including page references to the book. The format of this second edition is similar to that of the first edition. This makes it easy for readers familiar with the first edition to use this book. In addition to describing the new features of the language, many reader suggestions have been incorporated. This book is intended both for new users with little computer or shell experience, and for experienced computer users who are familiar with ksh and/or other shells. For new users, it has considerable tutorial material. For all users, it is a comprehensive reference handbook. What is the KornShell Language? The KornShell language was designed and developed by David G. Korn at AT&T Bell Laboratories. It is an interactive command language that provides access to the UNIX system and to many other systems, on the many different computers and workstations on which it is implemented. The KornShell language is also a complete, powerful, high-level programming language for writing applications, often more easily and quickly than with other high-level languages. This makes it especially suitable for prototyping. There are two other widely used shells, the Bourne shell developed by Steven Bourne at AT&T Bell Laboratories, and the C shell developed by Bill Joy at the University of California. ksh has the best features of both, plus many new features of its own. Thus ksh can do much to enhance your productivity and the quality of your work, both in interacting with the system, and in programming. ksh programs are easier to write, and are more concise and readable than programs written in a lower level language such as C. The new version of ksh has the functionality of other scripting languages such as awk, icon, perl, rexx, and tcl. For this and many other reasons, ksh is a much better scripting language than any of the other popular shells. The code
