What is sed?  sed is a "stream editor". sed rapidly and reliably transforms text files, and edits "streams" (program outputs) on the fly. sed is a uniquely useful text processing tool, installed by default on Unix computers. sed can also be used on a Windows PC.

Why should I learn sed?  If you write shell scripts, do system administration, or process text files (HTML, source code, data files) with scripts, sed can help make your work more productive and enjoyable.

Why should I buy this book?  "Definitive Guide to sed" is the best way to learn sed. "Definitive Guide" greatly lessens the confusion many encounter on trying to learn sed. The book serves as a full tutorial and reference, useful for both beginning and experienced sed users.

Any prerequisites?  If you plan to use sed on Unix, it is recommended to be familiar with basic Unix commands and to have written some simple shell scripts. If you plan to use sed on Windows, it is recommended to be familiar with batch or PowerShell scripting. sed is not a "beginner's tool".

Which sed is covered?  GNU sed 4.2.1 is covered. If you use a different sed, this book is still useful for learning sed, since most of the commands are the same.

What topics are covered? 

- All sed commands and options

- Regular expressions as used within GNU sed

- Addresses to specify when sed commands are run

- Related Unix text utilities, such as grep, head, and tr

- Example sed scripts with full explanations

- Reference sections for easy lookup

What devices can this e-book version be read on?  The EPUB e-book version is specially formatted for correct display on e-reader devices (Kobo, Nook, Sony) and e-reader software (Adobe Digital Editions, Calibre, iBooks).

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Top-Level Table of Contents

Foreword

Preface

1: Introduction to sed

2: sed s (substitute) Command

3: Flags for s (substitute) Command

4: Single Character MetaChars

5: Anchor MetaChars

6: Simple Repetition MetaChars

7: General Repetition MetaChars

8: Other RegEx MetaChars

9: SubEx MetaChars

10: Command Addresses

11: Delete PatSpace Content - dD

12: Append, Insert, Change - aic

13: Print PatSpace - pP l

14: Read / Write File - rR wW

15: Read Line into PatSpace - nN

16: Access HoldSpace - hH gG x

17: Branch / Quit - : btT / qQ

18: Other Actions - { } # eyvz =

19: General Advice about sed

20: Examples - Substitution

21: Examples - Line Spacing

22: Examples - Add Some Lines

23: Examples - Print Some Lines

24: Examples - Delete Some Lines

25: Examples - Other Short Tasks

26: Examples - Complex Tasks

27: Related Unix Commands - grep

28: Other Related Commands - 1/2

29: Other Related Commands - 2/2

30: Definitions of Special Terms

31: sed Command Line Reference

32: sed Command Reference

33: s Command Flag Reference

34: Address & Regex Reference

35: Related Books and Web Sites

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What the reviewers say:  "I can recommend this book as a good way to learn and review sed. It completely covers GNU sed, with many examples. I hope that this book is well received. The effort put in by the author, and the high quality of the result, surely deserve that." Paolo Bonzini - GNU sed Maintainer 2004-2012

What the reviewers say:  "Definitive Guide to sed" seems like a great way to learn sed. It's a reference / tutorial that's straightforward and to the point. The book has clear descriptions of every sed feature. It's systematic and organized, and written in a flowing style that takes most of the pain out of learning a somewhat complex topic. "Definitive Guide to sed" is highly recommended." Mendel Cooper - Author of 'The Advanced Bash Scripting Guide'

About the author:  Daniel Goldman has been "in the trenches" many years developing software, using sed along with other Unix programs, importing data, writing user guides, and helping users learn. Dan has the desire to help others master and feel comfortable using sed and other Unix utilities.

(Edited on Kobo 05-31-2013)