Lexically scoped resource management

https://metacpan.org/release/Scope-Guard

Manages sets of integers

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

Networking constants and support functions

https://metacpan.org/release/Socket

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

https://metacpan.org/release/Socket6

Spiffy Perl Interface Framework For You

https://metacpan.org/release/Spiffy

Get information from Excel file

https://metacpan.org/release/Spreadsheet-ParseExcel

Persistency for perl data structures

https://metacpan.org/release/Storable

Perl extension for approximate matching (fuzzy matching)

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

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

Perl module for sprintf-like string formatting capability

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

Sophisticated exporter for custom-built routines

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

Only use Sub::Exporter if you need it

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

Retrieve names of code references

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

Install subroutines into packages easily

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

Module to assign new names to Perl subroutines

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

Appear to run a function in a higher stack frame

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

Switch - A switch statement for Perl

https://metacpan.org/release/Switch

Try every conceivable way to get full hostname

https://metacpan.org/release/Sys-Hostname-Long

Ensure that a platform has weaken support

https://metacpan.org/release/Task-Weaken

Template Toolkit plugin to interface with GD modules

https://metacpan.org/release/Template-GD

Extensible template processing system

http://www.template-toolkit.org/

Color screen output using ANSI escape sequences

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

A perl5 module for simple terminal control

Fully-featured shell-like command line environment

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

Data Driven Testing Framework

https://metacpan.org/release/Test-Base

Provides basic first-pass API testing for large class trees

https://metacpan.org/release/Test-ClassAPI

Test data structures for differences deeply

https://metacpan.org/release/Test-Deep

Test strings and data structures for differences

https://metacpan.org/release/Test-Differences

Test functions for exception based code

https://metacpan.org/release/Test-Exception

Incredibly simple helpers for testing code with exceptions

https://metacpan.org/release/Test-Fatal

Run perl standard test scripts with statistics

http://search.cpan.org/dist/Test-Harness/

Perl module to interact with a t/test_manifest file

https://metacpan.org/release/Test-Manifest

Hide and store warnings while running test scripts

https://metacpan.org/release/Test-NoWarnings

Use Perl::Critic in test programs

https://metacpan.org/release/Test-Perl-Critic

Check for POD errors in files

https://metacpan.org/release/Test-Pod

Check for pod coverage in your distribution

https://metacpan.org/release/Test-Pod-Coverage

Perl extension for checking to see if the module can be loaded

https://metacpan.org/release/Test-Requires

Basic utilities for writing tests in perl

https://metacpan.org/release/Test-Simple

Track the number of times subs are called

https://metacpan.org/release/Test-SubCalls

Tools to test taintedness

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

Helps to test various Test::Builder derivatives

http://search.cpan.org/dist/Test-Tester/

Automatic and manual text wrapping and reformating

https://metacpan.org/release/Text-Autoformat

Extract delimited text sequences from strings

https://metacpan.org/release/Text-Balanced

Text::Diff - Perform diffs on files and record sets

https://metacpan.org/release/Text-Diff

Match globbing patterns against text

https://metacpan.org/release/Text-Glob

Perl interface to iconv() codeset conversion function

https://metacpan.org/release/Text-Iconv

Perl extension to patch text with given patch

https://metacpan.org/release/Text-Patch

Read record-oriented files

https://metacpan.org/release/Text-RecordParser

Manual text wrapping and reformatting

https://metacpan.org/release/Text-Reform

Line wrapping to form simple paragraphs

https://metacpan.org/release/Text-Tabs+Wrap