Many Perl distributions use a Build.PL file instead of a Makefile.PL file to drive distribution configuration, build, test and installation. Traditionally, Build.PL uses Module::Build as the underlying build system. This module provides a simple, lightweight, drop-in replacement. Whereas Module::Build has over 6,700 lines of code; this module has less than 120, yet supports the features needed by most distributions.

Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of tasks including system administration, web development, network programming, GUI development, and more.

This module lets you attempt to measure, from your operating system's perspective, how much memory a process is using at any given time.

Manipulating stashes (Perl's symbol tables) is occasionally necessary, but incredibly messy, and easy to get wrong. This module hides all of that behind a simple API.

File::Which was created to be able to get the paths to executable programs on systems under which the `which' program wasn't implemented in the shell.

This module offers a minimalist class construction kit. It uses no non-core modules for any recent Perl.

This way of associating structs with Perl space objects is designed to supersede Perl's builtin T_PTROBJ with something that is extensible (structs can be associated with any data type) and opaque (the C pointer is neither visible nor modifiable from Perl space).

Mozilla::CA provides a copy of Mozilla's bundle of Certificate Authority certificates in a form that can be consumed by modules and libraries based on OpenSSL.

Text::Glob implements glob(3) style matching that can be used to match against text, rather than fetching names from a file system. If you want to do full file globbing use the File::Glob module instead.

Conf::Libconfig is a Perl interface to the libconfig configuration file library. It support scalar, array, and hash data structures just like its C/C++ counterpart. It reduces the effort required to implement a configuration file parser in your Perl programme and allows sharing configuration files between languages.

This is a library for generating letters, building HTML pages, or filling in templates generally. A template is a piece of text that has little Perl programs embedded in it here and there. When you fill in a template, you evaluate the little programs and replace them with their values.

The Lingua::EN::Sentence module contains the function get_sentences, which splits text into its constituent sentences, based on a regular expression and a list of abbreviations (built in and given).

Class:Unload unloads a given class by clearing out its symbol table and removing it from %INC.

IPC::Cmd allows for the searching and execution of any binary on your system. It adheres to verbosity settings and is able to run interactively. It also has an option to capture output/error buffers.

Switch is a Perl module which implements a generalized case mechanism. The module augments the standard Perl syntax with two new statements: switch and case.

Ref::Util::XS is the XS implementation of Ref::Util, which provides several functions to help identify references in a more convenient way than the usual approach of examining the return value of ref.

Storable brings persistence to your Perl data structures containing SCALAR, ARRAY, HASH or REF objects, i.e. anything that can be conveniently stored to disk and retrieved at a later time.

This package contains functions to manipulate a MANIFEST file. The package exports no functions by default. The following are exported on request: mkmanifest, manifind, manicheck, filecheck, fullcheck, skipcheck, maniread, maniskip, manicopy, maniadd.

This module allows you to call isa, can, does, and DOES safely on things that may not be objects.

Class::Method::Modifiers provides three modifiers: before, around, and after. before and after are run just before and after the method they modify, but can not really affect that original method. around is run in place of the original method, with a hook to easily call that original method.

Lexical::Persistence introduces persistent lexical variable values for arbitrary calls.

The File::LibMagic module is a simple perl interface to libmagic from the file package.

Text::SimpleTable draws simple ASCII tables.

Exporter implements an import method which allows a module to export functions and variables to its users' namespaces. Many modules use Exporter rather than implementing their own import method because Exporter provides a highly flexible interface, with an implementation optimised for the common case.