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Intermediate Perl [Kindle Edition]

Brian d foy , Randal L. Schwartz , Tom Phoenix
4.6 out of 5 stars  See all reviews (23 customer reviews)

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Book Description

Perl is a versatile, powerful programming language used in a variety of disciplines, ranging from system administration to web programming to database manipulation. One slogan of Perl is that it makes easy things easy and hard things possible. Intermediate Perl is about making the leap from the easy things to the hard ones.


Originally released in 2003 as Learning Perl Objects, References, and Modules and revised and updated for Perl 5.8, this book offers a gentle but thorough introduction to intermediate programming in Perl. Written by the authors of the best-selling Learning Perl, it picks up where that book left off. Topics include:


  • Packages and namespaces
  • References and scoping
  • Manipulating complex data structures
  • Object-oriented programming
  • Writing and using modules
  • Testing Perl code
  • Contributing to CPAN

Following the successful format of Learning Perl, we designed each chapter in the book to be small enough to be read in just an hour or two, ending with a series of exercises to help you practice what you've learned. To use the book, you just need to be familiar with the material in Learning Perl and have ambition to go further.


Perl is a different language to different people. It is a quick scripting tool for some, and a fully-featured object-oriented language for others. It is used for everything from performing quick global replacements on text files, to crunching huge, complex sets of scientific data that take weeks to process. Perl is what you make of it. But regardless of what you use Perl for, this book helps you do it more effectively, efficiently, and elegantly.


Intermediate Perl is about learning to use Perl as a programming language, and not just a scripting language. This is the book that turns the Perl dabbler into the Perl programmer.



Editorial Reviews

Book Description

Beyond The Basics of Learning Perl

About the Author

Randal L. Schwartz is a renowned expert on the Perl programminglanguage. In addition to writing "Learning Perl" and the first two editions of "Programming Perl", he has been the Perl columnist forUNIX Review, Web Techniques, Sys Admin, and Linux Magazine. He has contributed to a dozen Perl books, and over 200 magazine articles. Randal runs a Perl training and consulting company (Stonehenge Consulting Services), and is highly sought-after as a speaker for his combination of technical skill, comedic timing, and crowd rapport. He's also a pretty good Karaoke singer.

brian d foy has been an instructor for Stonehenge Consulting Services since 1998. He founded the first Perl user group, the New York Perl Mongers, as well as the Perl advocacy nonprofit Perl Mongers, Inc., which helped form more than 200 Perl user groups across the globe. He maintains the perlfaq portions of the core Perl documentation, several modules on CPAN, and some stand-alone scripts. He's the publisher of The Perl Review and is a frequent speaker at conferences. His writings on Perl appear on The O'Reilly Network and use.perl.org, and in The Perl Journal, Dr. Dobbs Journal, and The Perl Review.

Tom Phoenix has been working in the field of education since 1982. After more than thirteen years of dissections, explosions, work with interesting animals, and high-voltage sparks during his work at a science museum, he started teaching Perl classes for Stonehenge Consulting Services, where he's worked since 1996. Since then, he has traveled to many interesting locations, so you might see him soon at a Perl Mongers' meeting. When he has time, he answers questions on Usenet's comp.lang.perl.misc and comp.lang.perl.moderated newsgroups, and contributes to the development and usefulness of Perl. Besides his work with Perl, Perl hackers, and related topics, Tom spends his time on amateur cryptography and speaking Esperanto. His home is in Portland, Oregon.


Product Details

  • File Size: 640 KB
  • Print Length: 280 pages
  • Simultaneous Device Usage: Unlimited
  • Publisher: O'Reilly Media; 1 edition (February 9, 2009)
  • Language: English
  • ASIN: B0026OR38K
  • Text-to-Speech: Enabled
  • X-Ray:
  • Word Wise: Not Enabled
  • Lending: Not Enabled
  • Amazon Best Sellers Rank: #694,187 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
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Customer Reviews

4.6 out of 5 stars
(23)
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Most Helpful Customer Reviews
78 of 83 people found the following review helpful
Format:Paperback
This book updates the 2003 "Perl References, Objects & Modules" from the same authors, which described (in a humorous but also realistic way) a group of "Sailors" writing navigation software.

First, I summarize the major changes of the new version:
1) The description of the methodology to partition software has been extended, leading to 3 separate chapters (3, 10, 15). I must say that it is not very clear why they are scattered in that order. I personally concluded that they are best read sequentially and in this order: first Chapter 10, "Building Larger Programs" (where the Sailors start reusing software first via 'cut and paste', then come to sanity via eval/do/require and finally 'package'); then Chapter 2, "Using Modules" (the natural follow up to 'package'); finally Chapter 15, "Exporter". Read in this order, they are a comprehensive and excellent overview of this subject. In the order presented in the book, they are odd (why would the sailors, after learning to use Modules in chapter 3, start 'cut and paste' and 'eval files' to reuse software in chapter 10?).
2) A new chapter "Intermediate Foundations", with a good section reminding the differences between 'eval string' versus 'eval {block }'.
3) The Testing area is enhanced with a new chapter "Advanced Testing". Information on CPAN & distributions is updated in several chapters. Also, while the examples in the book are largely the same, code style is improved; for example, the chapter on grep/map uses the 'grep { filter } array' and 'map { transform } array' style, rather than the less clear ', Expr' style of the first edition.
In all, a better book (aside from the absurd chapter organization choice remarked above).
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19 of 19 people found the following review helpful
5.0 out of 5 stars Good sequel to Learning Perl January 26, 2007
Format:Paperback
The first edition of this book was "Learning Perl Objects, References, and Modules". I never read that previous edition, so I can't comment on how that book stacks up against this new edition. This book is intended to pick up where Learning Perl left off. Its purpose is to show you how to use Perl to write larger more complex programs. As in Learning Perl, each chapter is small enough to read in an hour or so. Each chapter ends with a series of exercises to help you practice what you've just learned, and the answers are in the appendix for your reference. You don't have to know Unix to benefit from this book. Most everything in this book applies equally well to Windows ActivePerl from ActiveState and all other modern implementations of Perl. To use this book effectively, you just need to be familiar with the material in Learning Perl and have the ambition to go further. You should read this book from beginning to end, stopping to do the exercises as you go along. The following is the structure of the book:

Chapter 1, Introduction, just goes over what you should already know and how to use the book.

Chapter 2, Intermediate Foundations, introduces some intermediate-level Perl idioms used throughout the book. These are the things that typically set apart the beginning and intermediate Perl programmers.

Chapter 3, Using Modules, is about the building blocks for Perl programs. They provide reusable subroutines, variables, and even object-oriented classes. It also looks at the basics of using modules that others have already written.

Chapter 4 introduces references, which are the basis for complex data structures, object-oriented programming (OOP), and fancy subroutine magic.
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9 of 9 people found the following review helpful
5.0 out of 5 stars Good Book For Classroom Setting February 19, 2007
Format:Paperback|Verified Purchase
I picked up this book for a class that I was teaching at my office. The goal of the class was to train HTML/CSS/JavaScript and/or Java programmers to code in Perl since a large portion of our code base is written in Perl. Overall, I think that the book was a good choice for the class for a number of reasons.

First of all, the book is already written with a classroom setting in mind. The authors have used previous versions of the book, titled "Learning Perl Objects, References and Modules", for their own courses. This updated version benefits from all of the hours of empirical testing that it has received in the classroom. There are many thoughtful additions like having all of the chapters close to the same size. This allowed for me to assign a single chapter per session and know that I could comfortably fit the lecture and discussion of the chapter into a two-hour session. There are also exercises at the end of each chapter and answers for those exercises (with discussion) in an appendix.

This book is good for getting people just learning the language ready for the TMTOWTDI/TIMTOWTDI aspect of Perl. Take something simple like opening files... there are at least four 'standard' ways to do it. The book prepares you for all of the different versions of annoyances/features like this that show up in Perl code by walking through the evolution of the feature.

Another reason that I like this selection of book is that data files and code examples are actually available for download. I've been shocked that some of the programming books that I've gotten lately actually don't have this addition.

Finally, the course that I'm teaching is for people who probably already know how to program, at least a little, but they don't know Perl.
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Most Recent Customer Reviews
5.0 out of 5 stars A graet Intermediate text for Perl 5
Brian d foy has done it again this book takes of where "Learning Perl" leaves off, helping you take further steps into this awesome language
Published 9 months ago by grizzlysmit
4.0 out of 5 stars Good Stuff
I've read 'Objects, References, and Modules' by the same authors multiple times and keep a copy handy at my desk. I haven't completely read this book but am well on my way. Read more
Published 9 months ago by C. Carter
5.0 out of 5 stars Excellent
A well-written book (in the authors' traditional 'style') covering
most of the essential ways to use Perl beyond the simple
code that makes your Perl look like Basic.
Published 15 months ago by Lloyd Rice
5.0 out of 5 stars Great Book
This book has advanced my knowledge of perl better than any other! The delivery is spot-on and I understood everything very quickly based on Randal's presentation. Read more
Published 17 months ago by Amazon Customer
5.0 out of 5 stars Magnificent insight
I am programming in Perl since 1997. Randal L. Schwartz gives magnificent lessons even to experienced perl programmer. Read more
Published 19 months ago by John Jan Popovic
5.0 out of 5 stars Must have for serious Perl enlightenment
I own a ton of technical books on various computer subjects. If they were all as well written as this, life would be so much easier. It is clear and concise. Read more
Published 20 months ago by D. Page
4.0 out of 5 stars Excelent sequel to "Learning Perl"
This book is a must for anyone who has mastered the first several chapters of "Learning Perl" and wants to extend this perl skills. It covers an excelent choice of topics. Read more
Published 21 months ago by William Smith
5.0 out of 5 stars Great resource for frequently-used techniques
This book both an excellent tutorial and reference for essential Perl techniques such as:

(1) Using data references
(2) Using nested data structures
(3)... Read more
Published 23 months ago by Ronald Rahaman
4.0 out of 5 stars Leap from Perl scripting to serious development
After having learned the basics in Learning Perl ("Llama book"), Intermediate Perl takes you to the next level. Read more
Published on October 28, 2012 by bbelderbos
4.0 out of 5 stars Deep knowledge of Perl
I thought I have a good knowledge about Perl, but this book changed my mind in first chapter. It's not a intermediate level, and quite difficult if you have not read the "Learning... Read more
Published on October 27, 2012 by Jaeha Lee
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