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About Unix Shells By Example
Product Description Presents an introduction to the three major Unix shells and the Linux shells along with a discussion of tools, regular expressions, and quoting rules. From the Back Cover The world’s #1 shell programming book—now fully updated for Linux and more! UNIX Shells by Example is the world’s #1 shell programming book, from the world’s #1 shell programming instructor: Ellie Quigley. In UNIX Shells by Example, Fourth Edition, Quigley has thoroughly updated her classic and delivers the information today’s shell programmers need most—including comprehensive coverage of Linux shell programming with bash! Drawing on 20 years’ experience as a shell programming instructor, Quigley guides you through every facet of programming all leading UNIX/Linux shells: bourne, bash, korn, C, and tcsh. Quigley illuminates each concept with up-to-date, classroom-tested code examples designed to help you jump-start your own projects. She also systematically introduces awk, sed, and grep for both UNIX and GNU/Linux . . . making this the only shell programming book you’ll ever need! New in this edition: Comprehensive coverage of Linux shell programming with bash Shell Programming QuickStart: makes first-time shell programmers productive in just 15 pages Complete, practical debugging chapter Updated coverage of the latest UNIX and GNU/Linux versions of awk, sed, and grep Shell programming for sysadmins: walks you through key UNIX and Linux system shell scripts Completely updated: Shell programming fundamentals: what shells are, what they do, how they work Choosing the right shell for any application Nearly 50,000 UNIX/Linux sysadmins, developers, and power users have used previous editions of UNIX Shells by Example to become expert shell programmers. With UNIX Shells by Example, Fourth Edition, you can, too—even if you’re completely new to shell programming. Then, once you’re an expert, you’ll turn to this book constantly as the best source for reliable answers, solutions, and code. About the CD-ROM Comprehensive shell programming code library: all source code and data files for this book’s hundreds of example programs. About the Author Ellie Quigley is the author of many best-selling books on Linux shells, UNIX shells, and Perl programming. A leading instructor and trainer, her courses in Perl and UNIX shell programming at the University of California Santa Cruz Extension Program, Sun Microsystems, and numerous corporations and colleges have become legendary throughout Silicon Valley. Quigley’s company, Learning Enterprises, Inc., offers on-site training in Unix, Perl, C/C++, Java, and system administration. Excerpt. © Reprinted by permission. All rights reserved. Playing the “shell” game is a lot of fun. This book was written to make your learning experience both fun and profitable. Since the first edition was published, many of you who have been helped by my book have contacted me, telling me that the book made you realize that shell programming doesn’t need to be difficult at all! Learning by example makes it easy and fun. In fact, because of such positive feedback, I have been asked by Prentice Hall to produce this fourth edition of UNIX® Shells by Example for UNIX and Linux users, programmers, and administrators. Along with updated material throughout, it includes three completely new chapters, with full coverage of the GNU tools for those of you who use Linux. With the meteoric rise of Linux popularity, it seemed like a good time to combine the best of Linux Shells by Example with UNIX® Shells by Example and produce a single volume that touches on all the various aspects of the UNIX/Linux shell world. The new chapters include Chapter 2, “Shell Programming QuickStart,” an introductory jump-start for programmers who want a quick survey of the shell programming constructs and how they differ; Chapter 15, “Debugging Shell Scripts,” which gives you an example of an error message, what caused it, and
