Learning to use a programming language is about more than mastering the syntax.One needs to acquire an understanding of how to use the features of the language to solve practical programming problems.A focus of this book is many examples that show how to use AWK. Our computers are much faster and have more memory.
On one of many trips to the library or bookstore in search of books on Unix, I found the gray AWK book, a.k.a. He suggested we share design and algorithms and attached a draft of the POSIX standard so that I could update .
Frankly, if our roles had been reversed, I would not have been so open and we probably would have never met. He is an AWK expert’s AWK expert and a genuinely nice person.
Arnold contributes significant amounts of his expertise and time to the Free Software Foundation.
This book is the reference manual, but at its core it is a book about AWK programming that will appeal to a wide audience.
It is a definitive reference to the AWK language as defined by the 1987 Bell Laboratories release and codified in the 1992 POSIX Utilities standard.
On the other hand, the novice AWK programmer can study a wealth of practical programs that emphasize the power of AWK’s basic idioms: data-driven control flow, pattern matching with regular expressions, and associative arrays. The programs in this book make clear that an AWK program is typically much smaller and faster to develop than a counterpart written in C.
Consequently, there is often a payoff to prototyping an algorithm or design in AWK to get it running quickly and expose problems early.
Often, the interpreted performance is adequate and the AWK prototype becomes the product. Thirteen years ago I wrote: “If you use AWK or want to learn how, then read this book.” True then, and still true today.
, a program that you can use to select particular records in a file and perform operations upon them.
Copyright © 1989, 1991, 1992, 1993, 1996–2005, 2007, 2009–2016 Free Software Foundation, Inc.
This is Edition 4.1 of , for the 4.1.4 (or later) version of the GNU implementation of AWK.