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# Core modules (C)

Perl 5 version 18.2 documentation
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# Core modules (C)

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- Carp - alternative warn and die for modules
- CGI - Handle Common Gateway Interface requests and responses
- CGI::Apache - Backward compatibility module for CGI.pm
- CGI::Carp - CGI routines for writing to the HTTPD (or other) error log
- CGI::Cookie - Interface to HTTP Cookies
- CGI::Fast - CGI Interface for Fast CGI
- CGI::Pretty - module to produce nicely formatted HTML code
- CGI::Push - Simple Interface to Server Push
- CGI::Switch - Backward compatibility module for defunct CGI::Switch
- CGI::Util - Internal utilities used by CGI module
- Class::Struct - declare struct-like datatypes as Perl classes
- Compress::Raw::Bzip2 - Low-Level Interface to bzip2 compression library
- Compress::Raw::Zlib - Low-Level Interface to zlib compression library
- Compress::Zlib - Interface to zlib compression library
- Config - access Perl configuration information
- Config::Extensions - hash lookup of which core extensions were built.
- CPAN - query, download and build perl modules from CPAN sites
- CPAN::Debug - internal debugging for CPAN.pm
- CPAN::Distroprefs - read and match distroprefs
- CPAN::FirstTime - Utility for CPAN::Config file Initialization
- CPAN::HandleConfig - internal configuration handling for CPAN.pm
- CPAN::Kwalify - Interface between CPAN.pm and Kwalify.pm
- CPAN::Nox - Wrapper around CPAN.pm without using any XS module
- CPAN::Queue - internal queue support for CPAN.pm
- CPAN::Tarzip - internal handling of tar archives for CPAN.pm
- CPAN::Version - utility functions to compare CPAN versions
- CPANPLUS - API & CLI access to the CPAN mirrors
- CPANPLUS::Backend - programmer's interface to CPANPLUS
- CPANPLUS::Backend::RV - return value objects
- CPANPLUS::Config - configuration defaults and heuristics for CPANPLUS
- CPANPLUS::Configure - configuration for CPANPLUS
- CPANPLUS::Dist - base class for plugins
- CPANPLUS::Dist::Autobundle - distribution class for installation snapshots
- CPANPLUS::Dist::Base - Base class for custom distribution classes
- CPANPLUS::Dist::Build - CPANPLUS plugin to install packages that use Build.PL
- CPANPLUS::Dist::Build::Constants - Constants for CPANPLUS::Dist::Build
- CPANPLUS::Dist::MM - distribution class for MakeMaker related modules
- CPANPLUS::Dist::Sample - Sample code to create your own Dist::* plugin
- CPANPLUS::Error - error handling for CPANPLUS
- CPANPLUS::Internals - CPANPLUS internals
- CPANPLUS::Internals::Extract - internals for archive extraction
- CPANPLUS::Internals::Fetch - internals for fetching files
- CPANPLUS::Internals::Report - internals for sending test reports
- CPANPLUS::Internals::Search - internals for searching for modules
- CPANPLUS::Internals::Source - internals for updating source files
- CPANPLUS::Internals::Source::Memory - In memory implementation
- CPANPLUS::Internals::Source::SQLite - SQLite implementation
- CPANPLUS::Internals::Utils - convenience functions for CPANPLUS
- CPANPLUS::Module - CPAN module objects for CPANPLUS
- CPANPLUS::Module::Author - CPAN author object for CPANPLUS
- CPANPLUS::Module::Author::Fake - dummy author object for CPANPLUS
- CPANPLUS::Module::Checksums - checking the checksum of a distribution
- CPANPLUS::Module::Fake - fake module object for internal use
- CPANPLUS::Selfupdate - self-updating for CPANPLUS
- CPANPLUS::Shell - base class for CPANPLUS shells
- CPANPLUS::Shell::Classic - CPAN.pm emulation for CPANPLUS
- CPANPLUS::Shell::Default - the default CPANPLUS shell
- CPANPLUS::Shell::Default::Plugins::CustomSource - add custom sources to CPANPLUS
- CPANPLUS::Shell::Default::Plugins::Remote - connect to a remote CPANPLUS
- CPANPLUS::Shell::Default::Plugins::Source - read in CPANPLUS commands
- Cwd - get pathname of current working directory