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This module provides a shared memory cache accessed as a tied hash. Shared memory is an area of memory that is available to all processes. It is accessed by choosing a key, the ipc_key argument to tie. Every process that accesses shared memory with the same key gets access to the same region of memory. In some ways it resembles a file system, but it is not hierarchical and it is resident in memory. This makes it harder to use than a filesystem but much faster. The data in shared memory persists until the machine is rebooted or it is explicitly deleted.

This module is used for Japanese text wrapping and so on.

IPC::ShellCmd comes from the nth time I've had to implement a select loop and wanted appropriate sudo/su privilege magic, environment variables that are set in the child, working directories set etc. It aims to provide a reasonable interface for setting up command execution environment (working directory, environment variables, stdin, stdout and stderr redirection if necessary), but allowing for ssh and sudo and magicking in the appropriate shell quoting. It tries to be flexible about how you might want to capture output, exit status and other such, but in such a way as it's hopefully easy to understand and make it work. Setup method calls are chain-able in a File::Find::Rule kind of a way.

This module makes it easier to build and manage a base set of imports. Rather than importing a dozen modules in each of your project's modules, you simply import one module and get all the other modules you want. This reduces your module boilerplate from 12 lines to 1.

Import::Into creates a global method import::into which you can call on any package to import it into another package.

List::Cycle - objects for cycling through a list of values.

Flattens nested array elements into a single list.

List::Gen provides higher order functions, list comprehensions, generators, iterators, and other utility functions for working with lists. walk lists with any step size you want, create lazy ranges and arrays with a map like syntax that generate values on demand. there are several other hopefully useful functions, and all functions from List::Util are available.

Inline::ASM allows you to write Perl subroutines in assembly language. Of course, many C compilers allow you to put assembly right in your C code, so this module does not provide any new functionality. It does, however, provide a feature most C compilers don't: you can mix different assembler syntaxes in the same file!

Inline::C is a module that allows you to write Perl subroutines in C. Since version 0.30 the Inline module supports multiple programming languages and each language has its own support module. This document describes how to use Inline with the C programming language. It also goes a bit into Perl C internals.