Perl is a highly capable, feature-rich programming language with over 37 years of development. Download and Get Started. With free online books, over 25,000 extension modules, and a …

There are some variables which have a predefined and special meaning in Perl. They are the variables that use punctuation characters after the usual variable indicator ($, @, or %), such …

Here the sigil changes to $ to denote that you are accessing a scalar, however the trailing [0] tells perl that it is accessing a scalar element of the array in _ or in other words, @_.

It is the environment that will be given to any subshell created by Perl. This is significant in taint mode, as %ENV will have entries that can alter the shell's behavior.

This Perl tutorial helps you learn basic Perl Programming language from scratch with many examples.

Jul 12, 2025 · Special Variables in Perl are those which are already defined to carry out a specific function when required. The differentiating factor between a special Variable in Perl and a …

These variables are reserved for future special uses by Perl, except for the ones that begin with ^_ (caret-underscore). No name that begins with ^_ will acquire a special meaning in any …

As in any living languages (such as English and French) there are exceptions from the rules. In Perl too. The variables $a and $b are special variables used in the sort function of Perl and, for …

Whether you are an experienced programmer or not, this website is intended for everyone who wishes to learn the Perl programming language. There is no need to download anything, just …

Presentations are not necessarily the best way to learn, but they can be worth reviewing.