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Learning AWK Programming

You're reading from   Learning AWK Programming A fast, and simple cutting-edge utility for text-processing on the Unix-like environment

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788391030
Length 416 pages
Edition 1st Edition
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Author (1):
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Shiwang Kalkhanda Shiwang Kalkhanda
Author Profile Icon Shiwang Kalkhanda
Shiwang Kalkhanda
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Table of Contents (11) Chapters Close

Preface 1. Getting Started with AWK Programming FREE CHAPTER 2. Working with Regular Expressions 3. AWK Variables and Constants 4. Working with Arrays in AWK 5. Printing Output in AWK 6. AWK Expressions 7. AWK Control Flow Statements 8. AWK Functions 9. GNU's Implementation of AWK – GAWK (GNU AWK) 10. Practical Implementation of AWK

Statements affecting flow control

Till now we have seen different conditional constructs and loop construct such as if...else, while, for, switch and do statements. Now, we will study break, continue and exit statements which are used to alter the normal flow of program. A loop performs a set of repetitive tasks until the conditional-expression becomes false, but sometimes it is desirable to skip some action statements inside the loop or terminate the loop immediately without checking the conditional-expression. In such cases, break and continue statements are used.

Break usage

The break statement is used to terminate the innermost while, do...while, or for loop that encloses it. The break statement is also used to break out...

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