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Data Munging with Perl (Paperback)

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4.1 out of 5 stars  See all reviews (11 customer reviews)


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Editorial Reviews

Review

" . . . well written, informative, thought provoking . . . will be as relevant five years from now as it is today. . . . buy [one]." -- Dr. Dobb’s Journal

"A very good resource for programmers who want to learn more about data parsing, data filters, and data conversion..." -- ACM Computing Reviews

"I found the sample problems and the author's solutions to be very well done. I . . . liked the design tips..." -- Pikes Peak Perl Mongers

"Well worth the price, and a good starting point for more advanced forays." -- Use.Perl.com

the chapters are concise, the coverage is comprehensive, and the examples are plentiful and relevant. -- Web Techniques Magazine


Product Description

The Perl language is well suited for use with "data munging" tasks: those that involve transforming and massaging data. While Perl is commonly used for such tasks, there has been no book focused on the topic of munging. This book covers the basic paradigms of programming and discusses the many techniques that are specific to Perl. It also examines standard data formats such as text, binary, HTML, and XML before giving tips on creating and parsing new structured data formats. Source code downloads and technical support from the authors are available on publisher's Web site.

Product Details

  • Paperback: 300 pages
  • Publisher: Manning Publications (January 15, 2001)
  • Language: English
  • ISBN-10: 1930110006
  • ISBN-13: 978-1930110007
  • Product Dimensions: 9.1 x 7.2 x 0.7 inches
  • Shipping Weight: 1 pounds
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (11 customer reviews)
  • Amazon.com Sales Rank: #161,320 in Books (See Bestsellers in Books)

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    #42 in  Books > Computers & Internet > Databases > Relational Databases

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David Cross
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Customer Reviews

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Average Customer Review
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20 of 20 people found the following review helpful:
5.0 out of 5 stars An apt description of Perl, February 12, 2001
I was perusing the shelves at my local bookstore, when this title jumped out and grabbed me. Not only is it a unique and interesting title (Something uncommon for computer books), but it is also the most succinct description of my job, and of Perl for that matter, that I have ever seen.

I am an avid reader, and in the interest of furthering my career most of my reading is work related. Normally, it takes me more than a month to read a book, though I am in the process of reading a half dozen or so at a time. I finished this book in less than a week. I couldn't put it down.

The thing that is so great about this book, is that it delves into the heart of what Perl does best (And was designed to do). Nine out of ten (more like ninety-nine out of one-hundred) jobs in Perl involve taking some sort of raw data, munging it, and spitting it out to some other process. This book is about doing that, many of the different forms that that can take, and some of the many techniques that perl (and a pragmatic approach) make available to do that.

While I hesitate to say that this is the best Perl book I've ever read (It's got some good competition), I can say that there is no application of Perl that I am aware of where this book and the principles it explores would not be of value. In my opinion this book belongs on every serious Perl programmer's bookshelf right next to the "Camel" and the "Cookbook".

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27 of 29 people found the following review helpful:
5.0 out of 5 stars Stop this man before he reveals everything!, February 26, 2001
By david l nicol (kansas city, missouri) - See all my reviews
Dave Cross's new book, published by Manning, which means it has a figure from an old guide to native dress of the peoples of the world on the cover instead of some kind of animal, tells everything you need to know about using Perl for what it is most suited for: manipulating data.

Starting with the source/filter/sink theory of data manipulation and demonstrating every tip and technique with clear and efficient examples, without severe digressions into mythological whimsy, this book would make an excellent second text on the Perl language, or a suitable first for someone who is good with programming languages.

Many of the techniques contained in it are of "trade secret" quality; they are the sort of write-the-number-of-gallons-of-paint-it-took-to-paint- the-room-on-the-back-of-the-light-switch-cover practices that until now had to be learned or happened upon by every programmer, alone, or by example, rather than in the context of a coherent theory.

The theoretical side, in which "munging" is defined and most software activity is described in terms of it, is clear enough that the book might be an interesting read for management, to answer the question "Just what is it about Perl that makes those who use it regularly so confoundedly fanatical?"

If you've ever been mystified by a Perl wizard who found it easier to export the records from the fancy GUI database into a comma delimited text file and then sort and display the data with mysterious little programs rather than use the GUI's native report generator, and want to find out why, or if you would like to become such a person yourself, or if you already are such a person but would like to get better at it, this book is for you.

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17 of 17 people found the following review helpful:
4.0 out of 5 stars Good for data-processing *beginners*, July 6, 2001
By Goldin Evgeny (Tel-Aviv, Israel) - See all my reviews
(REAL NAME)   
It's a guide. David takes you through the different "data munging" tasks ( record oriented data ? binary data ? fixed-width data ? XML ? ) and shows you his proper ways of dealing with them ( or, at least, thinking about them ). It's not an encyclopedia of "data munging", the book is 300 pages and many of them ( too many, may be ) are detailed descriptions of useful CPAN modules ( which I wasn't reading as careful as the rest of the book, since POD was always enough ), so it covers only a usual data processing tasks letting you to go deeper by yourself for more advanced topics. After you'll finish it much less "data sources" will scare you - the solutions and references are inside.

As I said, it may be good for data-processing beginners, but Perl experts will hardly find lot's of new information in it.

P.S. I trust him and therefore follow his advices in every script I start to think of ( especially the one about "UNIX filter model" ).

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Most Recent Customer Reviews

2.0 out of 5 stars David Cross is usually funnier.
David Cross, star of stage and screen, is normally hilarious. And with a title like that, I was sure that 'Munging' was some hilarious indie slang for something disturbing... Read more
Published 2 months ago by Eli Bishop

4.0 out of 5 stars No-nonsense resource for meat and potatoes Perl scripting
The quintessential Perl activity is data processing, particularly in a Unix environment, where output is piped into a script from some other program, transformed, and spat out... Read more
Published on July 21, 2007 by Thing with a hook

5.0 out of 5 stars I wish I had purchased this book years ago
As a DBA, I bought this book to enhance my data manipulation skills with Perl but I found so much more in this compact book. Read more
Published on January 1, 2007 by M. Schmidt

5.0 out of 5 stars Belongs on every sysadmin's desk
This book isn't about arcane corners of Perl theory. It's about how to write Perl programs that perform the "simple" task of converting data from one format to... Read more
Published on July 2, 2002 by Sean Burke

5.0 out of 5 stars Valuable for its _clarity_
After reading this book I rewrote a pretty massive postscript pasrsing and munging system that I was having a lot of trouble with and felt like I did it the _right_ way. Read more
Published on July 24, 2001 by Robert J. Monn

1.0 out of 5 stars 7 years ago this would have been good.
I was hoping this book would provide some valuable routines for processing data, but instead it has proved virtually useless in my day to day job as a UNIX data center... Read more
Published on June 11, 2001

5.0 out of 5 stars Great Dip Into Data Munging and Perl
This book, written by Perlmonk (www.perlmonks.org) David Cross, is an excellent, easy to read, and easy to follow guide into what Perl does best: Data Munging. Read more
Published on May 17, 2001 by Maurice Reeves

4.0 out of 5 stars Yet Another Top Manning Title
With Data Munging with Perl David Cross joins the ranks of the top Manning authors such as Conway and Johnson, a book that is both an excellent guide to doing essential day to day... Read more
Published on January 22, 2001

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