These two brother functions have a significant difference. Learn it from this tutorial so you will never mix up.

This tutorial will teach you how to write proper Perl code to send mail message from a script. It works in UNIX environment only, as you need to pass data to the SENDMAIL utility.

Using this technique you will be able to fetch any document from internet into your script. When it contents are available to you, it is possible to parse it and place on your page.

All you need to create a file upload script is to write a correct HTML form and just a ten lines of text. The CGI module will do all the dirty work of parsing received data.

In some web applications you need to set a very short pause to wait for something. For example applications using one file in several processes need to wait until the file is unlocked... So this tutorial describes how to write delays shorter than 1 second !

Learn any possible way of creating redirection script. You can choose whatever you have available: Perl, PHP, JavaScript or just HTML. There are no other techniques at all.

Have you ever got an exit code from a function with the value "0 but true" ? This is a special way when Perl maps zero value into this. Find out why.

With this technique visitors will be able to download a file from your site but they never will find the URL information of this file. Perfect solution for pay sites.

A step-by-step guide on how to set up and use CGI scripts on Web sites. Also includes a introduction to the Perl programming language and SSI (Server Side Includes).

In our final excerpt from Chapter 3 of "MySQL and Perl for the Web," we learn how to write scripts that work properly with mod_perl. Variable scoping, initialization, and script caching are all potential pitfalls; and author Paul DuBois shows us the correct methods. (Webreference)

We continue our series of excerpts from "MySQL and Perl for the Web." Learn how to configure and test your mod_perl installation, streamline your scripting with startup files, and ensure compatibility with your existing scripts. From New Riders. (Webreference)

Looking to add speed to your Perl applications? In this first of a series of excerpts from chapter 3 of "MySQL and Perl for the Web," we examine the pros and cons of turbo-charging your Perl scripts using mod_perl. From New Riders. (Webreference)

Subroutinesare autonomous blocks of code that function like miniature programs and can be executed from anywhere within a program. Because they are autonomous, calling them more than once will also re use them.

Learn how to pass just about every kind of parameter to a Perl subroutine, to modularize your code. (Webreference)

Basic Perl subroutines do not have any formal way of defining their arguments. We say 'basic' because we can optionally define a prototype that allows us to define the types of the arguments passed, if not their names inside the subroutine.

Learn how to define Perl subroutines on-the-fly and explore the intricacies of recursion using subroutines. (Webreference)

Peek inside Perl subroutines with this exclusive excerpt from Wrox Press. Code away all ye JAPHs. (Webreference)

Tired of writing Perl code to parse form data? Take a leaf from the book of the experts and let CGI.pm do all the work for you. This article introduces you to CGI.pm's powerful page construction and form parsing capabilities, with simple examples of how you can use it to simplify your Perl development.

Encrypting data is becoming more important in a world where everyone wants to snoop. Learn how to protect your data in an ironclad lockbox with Perl and the Crypt::RC4 module. (Mother of Perl)

This CGI library demonstrates how to use JavaScript within a Perl CGI script to link 2 menus to each other, so that when the user changes the selection on the 'base' menu, the 'linked' menu changes automatically to match.

html-calendar.pl demonstrates, very simply, how to install and test HTML::CalendarMonth.

What do you get when you combine Perl, AIM, Festival, and the Eliza chatterbot? An instant messenger on steroids! Have some fun with this talkative tutorial. (Mother of Perl)

Fed up with hosts that won't give you the access you need to run your scripts faster? This tutorial discusses a workaround to your troubles called SpeedyCGI. (Webreference)

PerlScript is an ActiveX Scripting Engine put out by the good folks at ActiveState. (4Guys)

With Crispin's help, you, too, can parse text like a pro. (Webmonkey)

Once again someone has proven that it can be done on a Mac. Continuing with the Perl daemon series, guest writer Brian McNett cooks up a Mac daemon alternative with a little spice from Chris Nandor. (Webreference)

Simplified DocBK XML is a simplified form of the DocBook SGML format used extensively for technical documentation and articles. Using it also makes it easy to convert an article to multiple formats like HTML, RTF and Postscript. In this tutorial, we'll learn how to write articles in Simplified DocBk XML and convert them into HTML for the Web. (Webreference)

Unix daemons are unseen creatures that lurk in the shadows of your computer, performing the bidding of the all-knowing root process. In this tutorial, we will learn to craft our own daemons in Perl. (Webreference)

Learn how to add free news headlines to your Web site from any site that supports Netscape's Rich Site Summary (RSS) format: make your site stickier than a roach motel. (Webreference)

Been wanting to track down where your users are wandering off to? Well, we can't attach homing beacons to their Web browsers, but we can track when a user leaves our Web site via an external link. In this edition of Mother of Perl, we'll learn how to log this subvertive behavior with a simple Perl script without the user knowing it. (Webreference)

In this tutorial, we will explore how to use Perl to monitor services like HTTP, POP, NNTP, SMTP, and IMAP on local or remote servers anywhere on the Internet. Since this script is a command-line utility, you can automatically monitor services via a cron job (on *nix) or with at (on NT). (Webreference)

In Part III, we will add the capstone to the PerlHoo series by adding an administrative tool that will allow us to add, edit, and delete new and current entries in our PerlHoo Web directory. (Webreference)

We continue the PerlHoo series by adding the ability for users to suggest new sites in PerlHoo. We will also discuss how and why a Web directory can make your Web sight more valuable. (Webreference)

This is part one of a three part series to build a complete Yahoo-like Web directory. In part one, we will build a simple yet fully functional implementation in less than 100 lines of code using our operating system, comma delimited files, a dash of ingenuity, and lots of duct tape. (Webreference)

XML is the standard that promises to free us from the shortcomings of HTML by allowing authors to create documents using their own descriptive markup. Despite the clear benefits of XML, it is still unclear how authors should mix XML and HTML. In this article we'll show how to turn your HTML files into mini databases by embedding XML tags in your Web pages to describe the enclosed content. (Webreference)

Brian gives examples and source code for a complete, Perl-based template system. (Webmonkey)

You may not dig online chat, but the code behind the rooms has plenty to offer. (Webmonkey)

Brian shows how he wrote a search engine in a few lines of code. (Webmonkey)