CGI & PERL
I found CGI to be quite confusing to begin. I had thought CGI was a language. CGI (Common Gateway Interface) is a way for information to get passed to and from webpages from computer programs. You may use any computer language. Usually C or PERL is used. You need CGI permission from your web hosting company to use CGI scripts on your website. They are major security risks and not all hosting companies are set up to deal with the security risks. Remember to chmod after you upload your scripts to 755.
PERL (Practical Extraction and Replacement Language) is a scripting language. It is good for small tasks you need done and it is particularly suited to parsing text, sorting, and finding and replacing files and text. You can use PERL for interactive user web pages or for website maintenance. There are several scripts on this site for doing just that.
Off site tutorials
A CGI Tutorial
Beginner’s Guide to CGI Scripting with Perl
Perl Communities
O’Reilly Perl Pages
Perl Monks
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