41. Effective Perl Programming (Joseph Hall) - Review Effective perl programming Writing Better Programs With Perl. It assumes botha basic knowledge of Perl and a general understanding of programming. http://dannyreviews.com/h/Effective_Perl.html

Danny Yee's Book Reviews Subjects Titles Authors ... Latest Effective Perl Programming: Writing Better Programs With Perl Joseph N. Hall Addison-Wesley 1998 Amazon A book review by Danny Yee I must confess up front that I am a heretic or, more accurately, an apostate: I learned the basics of Perl years ago, but decided soon afterwards that I preferred Python. It's hard to be a Unix system administrator these days without running into Perl regularly, however. Effective Perl Programming is not an introduction to the language or a reference book, but a collection of tips and insights, in the form of some sixty "items", largely self-contained. It assumes both a basic knowledge of Perl and a general understanding of programming. Hall explains some of the trickier and more complex features of the language and offers advice on choosing between the many ways Perl offers to do things, so as to improve efficiency and clarity. Some of his material falls into the realm of "neat tricks", but some of it provides sophisticated insights into the language or touches on general issues of computer science (for example the differences between "procedural" regular expressions and lex style finite automata).

42. Wiley::Perl Programming For Biologists By Keyword, Wiley Life Medical Sciences Bioinformatics PerlProgramming for Biologists. http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471430595.html

Shopping Cart My Account Help Contact Us By Keyword By Title By Author By ISBN By ISSN Wiley Bioinformatics Perl Programming for Biologists Related Subjects Biological Anthropology Biology Biotechnology General Life Sciences ... Microbiology and Virology Related Titles Bioinformatics A Biologist's Guide to Analysis of DNA Microarray Data and Microarray Analysis Set (Hardcover) by Mark Schena Toxicogenomics: Principles and Applications (Hardcover) by Hisham K. Hamadeh (Editor), Cynthia A. Afshari (Editor) Dictionary of Bioinformatics and Computational Biology (Hardcover) by John M. Hancock (Editor), Marketa J. Zvelebil (Editor) Microarray Quality Control (Hardcover) by Wei Zhang, Ilya Shmulevich, Jaakko Astola Bioinformatics: A Practical Guide to the Analysis of Genes and Proteins, 3rd Edition (Hardcover) by Andreas D. Baxevanis (Editor), B. F. Francis Ouellette (Editor), Mark Boguski, Gerard Bouffard, Stephen Bryant, Barbara Butler, Sam Cartinhour, Colombe Chappey, Mark Hershkovitz, Christopher Hogue, Jonathan Kans, David Landsman, Detlef Leipe, James Ostell, Greg Schuler European Journal of Immunology (Journal) by Novartis Foundation Symposium Join a Bioinformatics Perl Programming for Biologists D. Curtis Jamison

43. Onsight Inc. | Training | Perl Programming perl programming -. Course Benefits. For more information or to schedule a PerlProgramming training delivery at your site, contact training@onsight.com. http://www.onsight.com/training/perl/

Perl Programming Perl Programming Advanced CGI Programming Using Perl JavaScript Programming ... Advanced Tcl/Tk Programming Perl Programming Course Benefits Perl is a multi-purpose cross-platform object-oriented programming language used extensively across Linux, UNIX and Win32 platforms. Perl's powerful operators and functions make it easy to develop CGI scripts and write programs to process text, manipulate databases and handle system administration tasks. Once you know the basics, Perl is easy to use. This three day, hands-on course gives programmers a strong foundation in the language. What You'll Learn Day 1 Origins of perl - Lab 1 Scalar data type - Lab 2 and 3 Array data type - Lab 4 Control flow constructs (if/while/for etc.) - Lab 5 Day 2 Using standard input and output - Lab 6 Associative array/hash data type - Lab 7 Basic regular expressions - Lab 8 Subroutines - Lab 9 String manipulation functions - Lab 10 Day 3 File input/output - Lab 11 More on string manipulation- Lab 12 Interfacing to the operating system - Lab 13 Miscellaneous Perl features - Lab 14 Introduction to references and modules - Lab 15 Course Materials The students will receive the following valuable materials: Course Participant Guide O'Reilly and Associates "Programming Perl" , a.k.a. The Camel Book

44. Onsight Inc. | Training | Perl Programming Advanced perl programming Advanced -. Course Benefits. a copy of O Reilly and Associates Advanced perl programming , aka The Panther Book. Customize This Course. http://www.onsight.com/training/advperl/

Perl Programming Perl Programming Advanced CGI Programming Using Perl JavaScript Programming ... Advanced Tcl/Tk Programming Perl Programming Advanced Course Benefits The Perl language has evolved into a very powerful multi-purpose language. Modules written for Perl allow programmers to quickly create programs that incorporate complex data types, object-oriented technologies, graphical user interfaces and more. Our three day, hands-on "Perl Programming Advanced" training course is designed for experienced Perl programmers who want to explore the many advanced topics available. What You'll Learn Day 1 reference data type - Lab 2 the Perl debugger complex data types - Lab 3, Lab 4, Lab 5, Lab 6 Day 2 advanced regular expressions - Lab 7 object oriented programming - Lab 8, Lab 9 Day 3 modules (Benchmark, Data::Dumper, etc.) - Lab 10 TCP/IP - Lab 11 Data Persistence, including DBI - Lab 13 GUI in Perl - the Tk interface - Lab 14, Lab 15, Lab 16 Course Materials The students will receive the following valuable materials: Course Participant Guide a copy of O'Reilly and Associates "Advanced Perl Programming" , a.k.a. The Panther Book

45. Web / Programming / Perl - WebReference.com Graphics Programming While often relegated strictly to text handling tasks, theperl programming language can also be used to create and manipulate graphics. http://webreference.com/programming/perl/

WebRef Sitemap Experts Tools ... programming / perl Developer News A Linux Desktop Bonanza Open Source CVS Flaw Sparks Use Audits Perl (the "Practical Extraction and Report Language," or "Pathologically Eclectic Rubbish Lister") is one of the most popular and pervasive scripting languages on the Internet today. "What is the sound of Perl? Is it not the sound of a wall that people have stopped banging their heads against?" - Larry Wall, creator of Perl. WebReference Articles Mother of Perl Our own Perl guru, Jonathan Eisenzopf, provides this now archived column, with free and helpful tips, tricks, code and projects. Columns have covered parsing RSS newsfeeds (including Jonathan's own XML::RSS module), tracking URL redirects, PerlHoo (a Yahoo like directory implemented in Perl) and more. mod_perl Developer's Cookbook Chock full of tasty recipes, this cookbook will help you get the most out of your mod_perl cuisine. Our excerpt from chapter 4 consists of 10 morsels allowing you to better communicate with the Apache server. From Sams Publishing. MySQL and Perl for the Web Excerpts from this New Riders title focus on speeding up your Perl applications via the Apache module mod_perl.

46. ATI's Perl Programming Course perl programming Course. Perl is a scripting language which allows for rapid prototypingof projects formerly done with a programming language or a shell. http://www.aticourses.com/perl.htm

Perl Programming Course Prerequisites: Some experience with either a programming language (preferably C), or any of the UNIX shells. Who Should Attend: Programmers, end users, system administrators, network administrators, CGI script writers, or anybody who is interested in automating tasks but doesn't want to learn all the details of a full blown programming language. Course Description: Perl is a scripting language which allows for rapid prototyping of projects formerly done with a programming language or a shell. It incorporates all the functionality of C (including a UNIX system interface), the Shells, grep, sed, and awk. The topics in the course will aid all computer users - from end user to programmer to administrator alike. Many in class labs support the course material. Benefits of Attendance: Students will be able to write Perl scripts that: Manipulate files and directories Use the powerful regular expression capabilites of Perl Generate awk like reports Solve problems by using Perl's associative array capabilites Take Advantage of Perl's powerful interface to UNIX and other Oses Perform network communication including those tasks accomplished through CGI programming Perform many system administration functions Be able to use Perl to write CGI applications Be able to use Modules from the Standard Perl distribution Use Perl data structures and references Use object orientation in Perl Create objects and reuse classes Tuition: Tuition for the course is $1500 Course Outline: CHAPTER 1: A PERL TUTORIAL

47. ATI's Advanced Perl Programming Course Advanced perl programming Course. Prerequisites Students should have attended theperl programming course or have equivalent knowledge. Who Should Attend http://www.aticourses.com/advanced_perl_programming.htm

Advanced Perl Programming Course Prerequisites: Students should have attended the Perl Programming course or have equivalent knowledge. Who Should Attend: Programmers, end users, system administrators, network administrators, CGI script writers, or anybody who is interested in automating tasks. Course Description: The course gives a thorough treatment of packages, modules, libraries, and references so that the students will then have the necessary background to understand objects. A treatmentof object orientation follows so that students will be able to understand applications areas through modules such as Tk.pm, DBI.pm, CGI.pm and Socket.pm Benefits of Attendance: Students will be able to write Perl scripts that: Download, install, and use Modules from the Comprehensive Perl Archive Network (CPAN) Write POD (Pain Old Documentation) sections of Perl modules. Use Perl references to solve many programming problems including those problems involving arbitrarily complex data structures. Use associative arrays in a wide variety of commonly arising programming solutions Distinguish among packages, modules, libraries, and classes

48. Dynamic Choropleth Maps offers a Win32 turbocharged perl programming environment. http://users.erols.com/turboperl/

Dynamic Choropleth Maps Get Java Virtual Machine About Tutorial Metadata ... Help General Dynamic Choropleth Maps was designed as a visualization tool and is intended to be used as a starting point for spatial analyses. Visual patterns inferred by the user from data combinations do not necessarily imply a relationship. This tool is a prototype and has not been officially reviewed by the U.S. Environmental Protection agency. System Requirements You will need at least 1024x768 resolution to see the full map and slider controls. Go to control panel to set resolution if needed. The applet is compliant with Java virtual machine 1.1 or later. If your browser does not have the Java virtual machine you can obtain it by clicking the link for "Get Java Virtual Machine." If java is not working check that Java is enabled in your browser: Open the Preferences window using Edit -> Preferences.... Click on Advanced. Check that a check appears next to "Enable java". Zooming the map To Zoom in to a point on the map press and hold down the left mouse button. Zooming stops when the mouse button is released. To Zoom out to the full map click the mouse button. Drilling Down in the map Right click the mouse over the map to bring up a popup menu of web tools into which you can drill down for more information specific to a county.

49. Perl Programming perl programming. Perl is a developers programme unlike html in whichmost web pages are written, and like all proper programme http://www.ldb.co.uk/ldb/perl.htm

Perl Programming Perl is a developers programme - unlike html in which most web pages are written, and like all "proper" programme languages, is unforgiving in so far as - get it wrong, and you get nothing but an error message, so it is not for the faint hearted. So, why use it ? It's chief use is to make the pages dynamic, which means that the pages can respond to the users input, and can do a variety of things such as generate page counters, send email, do simple and complex calculations, provide statistics, carry out searches, and in it's more complex form can undertake shopping cart programmes, as well as a host of other functions, which html can't do unaided. It's use is best demonstrated by a few examples:- Index Counters Full size images from thumbnails Email enquiry forms Cookies ... Design a Sign Counters Here below is the output of a simple counter, which is counting the hits on this page. It requires no special page format (such as SSI - for those who understand that - these pages are not SSI pages), but a simple HTML call to an image file, which html is fooled into thinking that we are fetching an image, while all the time, it is in fact calling a perl script. You will notice that I have pre-set the counter to give 4 places, and that is why there will be some preceding zeros for some time to come. To test the counter, just hit the 'Refresh' button at the head of your browser, and the count will increment by one: Full size images from thumb nails The hard way of creating click through from thumbnail images to full sized images is to create a separate page for each image. The easy way is to create one scripted page that will accept all the references sent to it, and organise the page and image size according to the data sent from the thumbnail. An exaple can be seen on the

50. Prime Web Design A full service web design firm; includes Java and perl programming, Java applet or CGI script. http://www.primewebdesign.com/

is a leading full service web design team consisting of highly skilled and motivated programmers, artists, designers and marketing consultants. We offer you or your business cutting edge technology and other services including Web Design, Flash, Streaming Audio, Streaming Video, Web Site Hosting, Custom Art Work, Search Engine L istings. Our satisfied clients include the Joe Jackson and Rickie Lee Jones Official Web Sites. We have very competitive rates. Click here to go to our cost calculator for an estimate. Whether you need a new web site, or to update your existing one, we can give you that cutting edge look. We can also help you with E-Commerce, promotion, statistics, referrals, obtaining a domain name, and more. Recommend this site to a friend your name recipient name recipient E mail Senior Housing Assistance Group Joe Jackson Great Big Island

51. Web-based Forms; Surveys; Shopping Carts; Online Quotes; Database Design; Custom We provide custom perl programming for your CGI needs and modifications to existing Perl code. http://www.softouch.on.ca/

Home What Projects Programming Who ... Contact Custom Internet or Intranet programming for your web site needs Database (MySQL) programming Data entry forms and order pages are a specialty "We make web sites work!" Softouch Information Services

52. Public Advanced Perl Programming Courses At ScriptSearch.com [ID# 3834] Public Advanced perl programming Courses ID 3834 ADVANCED perl programmingThe course gives a thorough treatment of packages, modules, libraries, and http://www.scriptsearch.com/details/3834.html

home search about add ... highest rated Search this Site or ... Adv. Search Categories ASP C/C++ CFML Flash ... Find a Web Host with: CGI Access DB Support NT Servers UNIX Servers Telnet Access advanced search internet.com channels Developer Downloads International Internet Lists ... E-mail Offers Search for a Host details view Home Perl Public Advanced Perl Programming Courses Visit Rate Error Advanced Perl Programming Course Platform(s): All Price: Author: Thomas McCabe view author's listings or contact author Date Added: Dec 4 2001 Visits: 3057 (~ 3/day) Rating: (3.00 from 15 votes) - Select - Excellent! Very Good Good Fair Poor Web Site URL: http://www.trainingetc.com/advperl.html When rating this resource . . . . Please do not vote more than once for the same resource. The rating scale is 1 - 5, 1 being poor and 5 being excellent. The ratings are only useful if everyone rates sites objectively. You can view a current list of the Top Rated Resources Please do not vote for your own resource or a competitor's. Site owner: Put the rating form on your site! Listing wrong or need to be updated? Modify it Newsletter Editor's Picks 3-d Models For E-commerce 3d Dynamic Text Twister Animagix ... Calogic, The Logical Web Calendar

53. E-commerce, PERL Programmer, HTML Programming And Website Design, UNIX And LINUX Contract work in the areas of ecommerce development, shopping carts, html, css, and perl programming, website design. http://www.gethits.com/Darryl_Dyck_Resume.html

20723 93A Ave. Langley, BC V1M 2W7 Canada Ph: 604-882-1333 Fax: 604-882-2966 Email: darryl@gethits.com Resume: Darryl Dyck, BA A Word version of this resume can be found at ftp://www.gethits.com/Darryl_Dyck_Resume.doc Objective As an Independent Contractor, I am currently accepting project/freelance work in the areas of e-commerce, PERL and HTML programming, database, NT or UNIX/Linux system administration, and website design/graphics. I am competent and experienced in all the above. Projects can be priced on a contract or hourly basis (in U.S. funds). Although I am located in Canada, 85% of my work has been with U.S. companies, 10% International, and %5 Canadian. Experience 1996 - Present InterSight Holdings, Inc. Langley, BC Senior Manager, E-Commerce and Web Development Coordinator and head programmer for the successful Internet service, GetHits.com. Work covers all facets of e-commerce/website development and management, including hands on PERL (including OOP), CSS, and HTML programming; directing and overseeing the work of other PERL, database, and website programming; NT, LINUX, Apache, DNS, shell scripting, and SSL programming and administration; using and minor programming in Javascript, DHTML, and XML.

54. Public Perl Programming Courses At ScriptSearch.com [ID# 3833] Public perl programming Courses ID 3833 PROGRAMMING IN PERL The topics inthe course will aid all computer users from end user to programmer to http://www.scriptsearch.com/details/3833.html

home search about add ... highest rated Search this Site or ... Adv. Search Categories ASP C/C++ CFML Flash ... Find a Web Host with: CGI Access DB Support NT Servers UNIX Servers Telnet Access advanced search internet.com channels Developer Downloads International Internet Lists ... E-mail Offers Search for a Host details view Home Perl Public Perl Programming Courses Visit Rate Error Perl Programming Course PROGRAMMING IN PERL The topics in the course will aid all computer users - from end user to programmer to administrator alike. Many in class labs support the course material . Platform(s): All Price: Free Author: Thomas McCabe view author's listings or contact author Date Added: Dec 4 2001 Visits: 4073 (~ 4/day) Rating: (1.73 from 81 votes) - Select - Excellent! Very Good Good Fair Poor Web Site URL: http://www.trainingetc.com/perl.html When rating this resource . . . . Please do not vote more than once for the same resource. The rating scale is 1 - 5, 1 being poor and 5 being excellent. The ratings are only useful if everyone rates sites objectively. You can view a current list of the Top Rated Resources Please do not vote for your own resource or a competitor's.

55. Perl Programming Introduction - Course 431 1800-THE-TREE (1-800-843-8733), Introduction to perl programmingHands-On Writing Perl Scripts for UNIX, Linux, Win32 and Networks. http://www.learningtree.com/courses/431.htm

1-800-THE-TREE (1-800-843-8733) Introduction to Perl Programming: Hands-On Writing Perl Scripts for UNIX, Linux, Win32 and Networks Course: Type: Hands-On Training Duration: 4 Days quick enroll New York - Jun 29 - Jul 2, 2004 Chicago - Jul 20 - 23, 2004 Washington, DC - Jul 27 - 30, 2004 Washington, DC - Aug 3 - 6, 2004 New York - Aug 17 - 20, 2004 Toronto - Aug 24 - 27, 2004 Atlanta - Aug 31 - Sep 3, 2004 Boston - Sep 14 - 17, 2004 Ottawa - Sep 21 - 24, 2004 Washington, DC - Sep 21 - 24, 2004 More Dates >> you will learn how to Quickly create effective, reusable Perl scripts Take advantage of Perl 5's many small operators and built-in functions Structure code with user-generated subroutines Exploit the many additional object-oriented packages available on the Internet Build real-world scripts that can be used on UNIX, Linux and Win32 platforms course benefits Perl is a powerful object-oriented scripting language used extensively with UNIX, Linux, Win32 and the Internet. Perl's rich set of operators makes it easy to write concise, robust data manipulation programs and reusable tools. In this course, you learn to write scripts using Perl 5. Through intensive exercises, you learn to use Perl in your operating system and application environments, as well as apply built-in functions of the language and make use of external modules.

56. Win32 Perl Programming: The Standard Extensions, 2nd Edition Roth Consulting. Win32 perl programming The Standard Extensions, Second Edition. Win32perl programming The Standard Extensions Second Edition. Introduction. http://www.roth.net/books/extensions2/

Win32 Perl Programming: The Standard Extensions, Second Edition Home Services Perl ISAPI ... Contact Win32 Perl Programming: The Standard Extensions, Second Edition You can purchase this online from Amazon.com Win32 Perl Programming: The Standard Extensions Second Edition Introduction Since I published the first edition of Win32 Perl Programming: The Standard Extensions , quite a bit has changed. Perl has changed versions, a slew of new extensions have been written, bugs have been squashed, new bugs have been discovered and the cycle has continued. The book, however, has remained relevant regardless of these changes. This is a testimony to the need for such a book. My goal was to write a book that was concise, informative and useful. I didn’t want the book to become just another stack of paper sitting on a shelf or propping up someone’s computer monitor. I wanted the book to matter. Something that is kept within arm’s reach from the keyboard. It appears that this was exactly what happened. In my ideal world all reference books would be just that, used for reference. I certainly don’t have time to read through paragraphs of some author droning on about stories of his youth. Instead I want the author to tell me what I need to know. After all, if I wanted a biography, I wouldn’t have been looking in the computer section of the bookstore. The goal of this second edition is much like the first edition’s. Basically the book has been updated to reflect the latest version of Perl (version 5.6) and what it is capable of. While researching what to add to the second edition I was pained in having to decide what was in and what was out. Just how does one decide if one extension is more useful than another, anyhow? The criteria I decided to use was based on the amount of questions that were asked on several different forums. Email lists, Usenet groups, personal messages people have sent me as well as discussions at various conferences were among the list of sources I used. I also considered what extensions are the basis of others. For example, the Win32::API extension is used by Win32API::Net, Win32API::File and Win32API::Registry. So it makes sense to explain Win32::API.

57. Welcome To Roth Consulting The 2nd edition of our Win32 perl programming Standard Extensions is available. Win32perl programming The Standard Extensions Second Edition is HERE!!! http://www.roth.net/

Roth Consulting Home Page Looking for more Perl info? Have a look at our Perl links page You can search the Roth Consulting web site Our news server is online at news.roth.net Discover what Roth Consulting can do for your business. Check out Giant Company's Spam Inspector software. This is an add-on for Microsoft Outlook, Outlook Express and AOL. We here at Roth Consulting use it and have been quite impressed in how it successfully filters out spam from other valid email. Download the fully functional demo version and give it a try! Windows .NET Magazine's May issue had an article by Dave Roth that discussed how to remotely modify a network of Win32 machines' registries. It uses a technique to autodiscover any online Win32 machine which has come in quite handy! Check out the article online! Check out Dave Roth's monthly column in the Windows Scripting Solutions journal. Our Administrator's Handbook book is here and not a moment too soon! Win32 Perl Scripting: Administrator's Handbook Available at Amazon.com

58. ! Aware: Perl Advanced Search. Categories Map for perl programming. (The extensiveRocketAware categories map may have more categories.) Activity http://www.rocketaware.com/perl/

Rocket awareness of software and information. We have organized and cross referenced Perl documentation and FAQs according to our web usability principles, bringing you Rapid Knowledge Transfer and Awareness. One page reference - Combined list of all "Perlglyphics", functions, variables, and operators. Browse category descriptions by choosing one of the major headings below, or in the side bar at left. Home Search Perl pages Subjects By activity Professions, Sciences, Humanities, Business, ... User Interface Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,... Text Strings Conversions, tests, processing, manipulation,... Math Integer, Floating point, Matrix, Statistics, Boolean, ... Processing Algorithms, Memory, Process control, Debugging, ... Stored Data Data storage, Integrity, Encryption, Compression, ... Communications Networks, protocols, Interprocess, Remote, Client Server, ... Hard World Timing, Calendar and Clock, Audio, Video, Printer, Controls... File System Advanced Search Categories Map: for Perl Programming (The extensive RocketAware categories map may have more categories.)

59. Emacs Modules For Perl Programming Emacs modules for perl programming. MessageID perl-faq/emacs-lisp-modules_1083675484@rtfm.mit.edu X-Last-Updated 2002/08/31 http://www.faqs.org/faqs/perl-faq/emacs-lisp-modules/

Usenet FAQs Search Web FAQs Documents ... RFC Index Emacs modules for Perl programming jari.aalto@poboxes.com comp.lang.perl.misc Precedence: bulk Date: 04 May 2004 13:01:35 GMT Archive-name: perl-faq/emacs-lisp-modules Posting-Frequency: 2 times a month URL: http://tiny-tools.sourceforge.net/ http://www.gnu.org/software/emacs/emacs.html http://www.xemacs.org/ o Unix Windows port (for Unix die-hards): install http://www.cygwin.com/ which includes native Emacs 21.x. XEmacs port is bundled in XEmacs setup.exe available from XEmacs site. o Pure Native Windows port http://www.gnu.org/software/emacs/windows/ntemacs.html ftp://ftp.xemacs.org/pub/xemacs/windows/setup.exe ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl http://www.perl.com/CPAN-local/misc/emacs/cperl-mode/ ... gnu.emacs.sources ">http://groups.google.com/groups?group= gnu.emacs.sources kevinr@ihs.com Rate this FAQ N/A Worst Weak OK Good Great Current Top-Rated FAQs Are you an expert in some area? Share your knowledge and earn expert points by giving answers or rating people's questions and answers! This section of FAQS.ORG is not sanctioned in any way by FAQ authors or maintainers. Questions awaiting answers: 17390 questions related to FAQs 3039 general questions 8172 answered questions Usenet FAQs Search ... RFC Index Send corrections/additions to the FAQ Maintainer: Last Update June 07 2004 @ 00:23 AM

60. SAGE ;login: - Effective Perl Programming Effective perl programming Without a map You Can Only grep Your WayAround. by Welcome to Effective perl programming, the column. In http://www.usenix.org/publications/login/1998-6/perl.html

Effective Perl Programming: Without a map You Can Only grep Your Way Around by Joseph N. Hall joseph@5sigma.com Joseph N. Hall is the author of Effective Perl Programming (Addison-Wesley, 1998). He teaches Perl classes, consults, and plays a lot of golf in his spare time. Welcome to Effective Perl Programming, the column. In this and coming articles I'm going to discuss ways that you can use Perl more effectively, whether by mastering Perl idioms, using Perl modules, or finding new applications for Perl programs. I begin by covering two very powerful but underused language features: Perl's map operator and its cousin, the grep operator. I'll cover the basics quickly, then show you some useful techniques and a few neat tricks as well. The Basics of map and grep The map operator creates a transformed copy of a list by evaluating a specified expression or code block for each element in the list. Each time the expression or block is evaluated, contains the value of the current element. The result from the expression or block is appended to the list returned by map . The syntax for map looks like this: @result = map expression, list

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