Shell Programming in Unix Linux and OS X 4th Edition By Stephen Kochan Patrick Wood 9780134496009 0134496000

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Product details:

ISBN 10: 0134496000

ISBN 13: 9780134496009

Author: Stephen G. Kochan; Patrick Wood

Shell Programming in Unix, Linux and OS X is a thoroughly updated revision of Kochan and Wood’s classic Unix Shell Programming tutorial. Following the methodology of the original text, the book focuses on the POSIX standard shell, and teaches you how to develop programs in this useful programming environment, taking full advantage of the underlying power of Unix and Unix-like operating systems. After a quick review of Unix utilities, the book’s authors take you step-by-step through the process of building shell scripts, debugging them, and understanding how they work within the shell’s environment. All major features of the shell are covered, and the large number of practical examples make it easy for you to build shell scripts for your particular applications. The book also describes the major features of the Korn and Bash shells.   Learn how to… Take advantage of the many utilities provided in the Unix system Write powerful shell scripts Use the shell’s built-in decision-making and looping constructs Use the shell’s powerful quoting mechanisms Make the most of the shell’s built-in history and command editing capabilities Use regular expressions with Unix commands.

Shell Programming in Unix Linux and OS X 4th Table contents:

1. A Quick Review of the Basics

Some Basic Commands

Displaying the Date and Time: The date Command

Finding Out Who’s Logged In: The who Command

Echoing Characters: The echo Command

Working with Files

Listing Files: The ls Command

Displaying the Contents of a File: The cat Command

Counting the Number of Words in a File: The wc Command

Command Options

Making a Copy of a File: The cp Command

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