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There is also a Perl core module named CPAN; it is usually differentiated from the repository itself by using the name CPAN.pm. CPAN.pm is mainly an interactive shell which can be used to search for, download, and install distributions. An interactive shell called cpan is also provided in the Perl core, and is the usual way of running CPAN.pm ...
Perl Package Manager (PPM) is a Perl utility intended to simplify the tasks of locating, installing, upgrading and removing software packages. It can determine if the most recent version of a software package is installed on a system, and can install or upgrade that package from a local or remote host. [1] [2]
Modules can even be used to alter the syntax of the language. The effect of Perl modules are usually limited to the current scope in which it was loaded. It is common for Perl modules to have embedded documentation in Perl's Plain Old Documentation format. POD imposes little structure on the author.
Data::ParseBinary [1] is a CPAN module that originated as a port of Construct to the Perl programming language. (see its main POD document for its inspiration). Since the initial version, some parts of the original API have been deprecated.
Repositories may be solely for particular programs, such as CPAN for the Perl programming language, or for an entire operating system. Operators of such repositories typically provide a package management system , tools intended to search for, install and otherwise manipulate software packages from the repositories.
Tim Bunce took the lead and began specifying what would become the DBI module in 1994 upon the release of perl5 which eliminated the need for bespoke compilation in favor of dynamic, invocation time loading of libraries (modules). [2] As of 2010 the Perl community maintains DBI as a CPAN module in accordance with the open-source model.
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The Perl Object Environment (POE) is a library of Perl modules written in the Perl programming language by Rocco Caputo et al. . From CPAN: "POE originally was developed as the core of a persistent object server and runtime environment.