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, a program that you can use to select particular records in a file and perform operations upon them.

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A copy of the license is included in the section entitled “GNU Free Documentation License”. We were introduced in 1990 by circumstances—and our favorite programming language, AWK.

The circumstances started a couple of years earlier.

I was working at a new job and noticed an unplugged Unix computer sitting in the corner. However, a couple of days later, it was running, and I was and the one-and-only user. Weinberger’s ’s simple programming paradigm—find a pattern in the input and then perform an action—often reduced complex or tedious data manipulations to a few lines of code.

That day, I began the transition from statistician to Unix programmer. I was excited to try my hand at programming in AWK. A few days after my posting, I got a friendly email from Arnold introducing himself.

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.

Consequently, speed and storage inefficiencies of a high-level language matter less.

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 .

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