Perl module for fast, powerful binary serialization (encoder)

https://metacpan.org/pod/Sereal::Encoder

Manages sets of integers

http://search.cpan.org/dist/Set-IntSpan/

Perl module to manage sets of objects

https://metacpan.org/release/Set-Object

Perl module containing a set of scalars, including references

https://metacpan.org/release/Set-Scalar

Networking constants and support functions

http://search.cpan.org/dist/Socket/

RFC 2553's getaddrinfo and getnameinfo functions

https://metacpan.org/release/Socket-GetAddrInfo

IPv6 related part of the C socket.h defines and structure manipulators

http://search.cpan.org/dist/Socket6/

Packages that provide templated software licenses

https://metacpan.org/release/Software-License

Software::License pack for Creative Commons licenses

https://metacpan.org/release/Software-License-CCpack

Sort lexically, but sort numeral parts numerically

https://metacpan.org/release/Sort-Naturally

Type constraints and coercions for Perl

https://metacpan.org/release/Specio

Spiffy Perl Interface Framework For You

http://search.cpan.org/dist/Spiffy/

Get information from Excel file

http://search.cpan.org/dist/Spreadsheet-ParseExcel/

Persistency for perl data structures

http://search.cpan.org/dist/Storable/

Perl extension for temporary buffer to save bytes

http://search.cpan.org/dist/Stream-Buffered/

Perl extension for approximate matching (fuzzy matching)

http://search.cpan.org/dist/String-Approx/

Perl interface for cyclic redundancy check generation

Clean strings to protect from XSS attacks

Perl module to produce common sub-string indices for two strings

Perl module for sprintf-like string formatting capability

http://search.cpan.org/dist/String-Format/

Rewrite strings based on a set of known prefixes

https://metacpan.org/release/String-RewritePrefix

Sstring buffers with value tags on extents

https://metacpan.org/release/String-Tagged

Format terminal output using String::Tagged

https://metacpan.org/release/String-Tagged-Terminal

Make simple lightweight record-like structures

https://metacpan.org/release/Struct-Dumb

A sophisticated exporter for custom-built routines

http://search.cpan.org/dist/Sub-Exporter/

Helper routines for using Sub::Exporter to build methods

https://metacpan.org/release/Sub-Exporter-ForMethods

Export lexically-available subs with Sub::Exporter

https://metacpan.org/release/Sub-Exporter-Lexical

Only use Sub::Exporter if you need it

http://search.cpan.org/dist/Sub-Exporter-Progressive/

Retrieve names of code references

http://search.cpan.org/dist/Sub-Identify/

Create a fake infix operator

https://metacpan.org/release/Sub-Infix

Tool to inspect subroutines

https://metacpan.org/release/Sub-Info

Install subroutines into packages easily

http://search.cpan.org/dist/Sub-Install/

Sub::Name - (re)name a sub

http://search.cpan.org/dist/Sub-Name/

Efficient generation of subroutines via string eval

https://metacpan.org/pod/Sub::Quote

Sub::Uplevel - apparently run a function in a higher stack frame

http://search.cpan.org/dist/Sub-Uplevel/

Switch - A switch statement for Perl

http://search.cpan.org/dist/Switch/

Match/case syntax for Perl

https://metacpan.org/dist/Syntax-Keyword-Match

try/catch/finally syntax for Perl

https://metacpan.org/release/Syntax-Keyword-Try

Try every conceivable way to get full hostname

http://search.cpan.org/dist/Sys-Hostname-Long/

Map in a file as a Perl variable using mmap(2)

https://metacpan.org/release/Sys-Mmap

Test for and flip the taint flag without regex matches or eval

https://metacpan.org/release/Taint-Util

Ensure that a platform has weaken support

http://search.cpan.org/dist/Task-Weaken/

Template Toolkit plugin to interface with GD modules

http://search.cpan.org/dist/Template-GD/

Extensive Toolkit for template processing

http://search.cpan.org/dist/Template-Toolkit/

Color screen output using ANSI escape sequences

http://search.cpan.org/dist/ANSIColor/

Perl extension to display a progress bar

https://metacpan.org/release/Term-ProgressBar

A perl5 module for simple terminal control

Allow Term::ReadLine to use GNU readline

https://metacpan.org/release/Term-ReadLine-Gnu

Quick implementation of the minimal interface to Readline libraries

https://metacpan.org/release/Term-ReadLine-Perl

Fully-featured shell-like command line environment

http://search.cpan.org/dist/Term-ShellUI/