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The Perl Ioctl module provides an easily extensible way of getting the value of the C ioctl constants.

By default, this module exports a single function 'prompt'. It prompts the user to enter some input, and returns an object that represents the user input.

Another general-purpose iterator utility that is simple, fast and powerful.

IO::Prompter exports a single subroutine, prompt, that prints a prompt (but only if the program's selected input and output streams are connected to a terminal), then reads some input, then chomps it, and finally returns an object representing that text.

IO::TieCombine - produce tied (and other) separate but combined variables.

IO::Toolkit - Perl extension to create log files

IO::Util - A selection of general-utility IO function This is a micro-weight module that exports just a couple of functions of general utility in IO operations.

IO::YAML may be used to read and write YAML streams one document (i.e., one value) at a time.

IO-stringy makes it possible to create perl filehandles that point to just about any object. It contains next modules: IO::AtomicFile - write a file which is updated atomically IO::InnerFile - define a file inside another file IO::Lines - IO:: interface for reading/writing an array of lines IO::Scalar - IO:: interface for reading/writing a scalar IO::ScalarArray - IO:: interface for reading/writing an array of scalars IO::Wrap - wrap raw filehandles in IO::Handle interface IO::WrapTie - wrap tieable objects in IO::Handle interface

IPC::Cache implements an object store where data is persisted across processes.