Most Popular Scripts | CGI & Perl | Tutorials & Tips

The part 3 of the Perl 101 series teaches you more about Perl's control structures - including the FOR and WHILE loops - and also introduces you to Perl's array variables.

Known as much for its confusing, often oddball, syntax as for its efficiency and speed, Perl has a mystique that very few languages can match. This first article in a new series gives novice and intermediate programmers an introduction to the basics of the language.

This tutorial explains how to use the Apache::Registry Perl module to improve the performance of your CGI scripts, as well as how to implement SSIs and <Perl> sections with mod_perl.

An introduction to the HTTP protocol used for the exchange of www documents. It covers the essential knowledge needed for the other articles in this section on web client programming.

This article is a complete tutorial showing how to create your own streaming web clients, that can be used to stream (play while downloading) multimedia files such as mp3.

Perl and MySQL can be used together.... so why can't Perl and mSQL be together as well? Well, they can... using the same Perl module as well. Check out what you can and can't do with it here.

Find out what those server response codes like 401, 404, 500 mean. It can help you troubleshoot minor problems - knowing these are a must if you'll be working on programs that run on a server.

This is a list of common mistakes that people make when writing Perl scripts and suggestions on how to fix them. Included are general help tips on how to debug - very important particularly for beginners at programming. This list is based on the author's personal experience and complaints found on newsgroups/message boards.

This is an introduction to simple output in a perl script. The case study goes into greater detail with quotes and EOF markers and how metacharacters and escape sequences modify the output.

This document is a step-by-step tutorial for designing and serving graphical maps of information resources with either the external imagemap CGI script or with the built in imagemap support in NCSA HTTPd 1.5. Through such a map, users can be provided with a graphical overview of any set of information resources; by clicking on different parts of the overview image, they can transparently access any of the information resources. Sample examples available.

This page provides assistance with the implementation of imagemaps. It provides short answsers to basic questions and external links for tools and scripts for creating imagemaps.

These are a few guidelines to help you solving problems with your CGI Script. Topics include: Short overview of the CGI calling process, Server Errors - The server fails to execute the CGI, Logical Errors (Errors in the program flow), and more.

A collection of hundreds of frequently asked questions and answers on everything about Perl. It comprises 10 different sections and available in several different formats.

What is CGI? What is Perl? Chmod? Executable? 501 Errors? What is a cgi-bin? Find your answers to these questions in this introdutory CGI tutorial. It also covers creating dynamic content, configuration on the server-side, the whole server-side process, CGI script debugging, and more.

The tutorial covers the definition and how to start creating CGI programs in Perl. Many key CGI elements are explained with solid examples. Topics include: Forms, Environment Variables, Imagemaps, Tracking the User and more.

Intended for anyone who knows HTML, but doesn't know Perl or CGI programming, this Web-based class introduces you to writing Perl CGI scripts, teaches you the basics of writing CGI's, and walks you through several examples of common CGI programming applications for the Web.

This introductory tutorial on CGI takes a look at what CGI is, requirements to run CGI scripts, how to install (upload) CGI scripts onto your server and more.

This note describes how to get information about a remote user from within a CGI-bin script, and lists the information available.

Hints and tips on debugging Perl CGI scripts and identifying some possible causes of server errors.

Answers to general questions on running CGI scripts and programs. Topics include: Getting Started (Can you run CGI, Script Filename, Test Before Going Public), Beginning a Script, File Permissions, Editing a UNIX Script in DOS/Win, Testing the Script Locally, CGI Paths, and Web Testing.