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In Perl 5.8.0 the so-called "safe signals" were introduced. This means that Perl no longer handles signals immediately but instead "between opcodes", when it is safe to do so. The earlier immediate handling easily could corrupt the internal state of Perl, resulting in mysterious crashes. It's possible since perl 5.8.1 to globally disable this feature by using the PERL_SIGNALS environment variables (as specified in "PERL_SIGNALS" in perlrun); but there's no way to disable it locally, for a short period of time. That's however something you might want to do, if, for example, your Perl program calls a C routine that will potentially run for a long time and for which you want to set a timeout. This module therefore allows you to define UNSAFE_SIGNALS blocks in which signals will be handled "unsafely".

When using Pod::Coverage in combination with Moose, it will report any method imported from a Role. This is especially bad when used in combination with Test::Pod::Coverage, since it takes away its ease of use.

This is a generic interface for placing processes in the background on both Unix and Win32 platforms. This module lets you start, kill, wait on, retrieve exit values, and see if background processes still exist.

Rcs::Agent is a perl module for manipulating RCS archives. It provides an object-oriented interface to the RCS commands rcs(1), rcsdiff(1), ci(1) and co(1), in addition to providing easy access to revision information contained in the RCS archive file.

Scalar::Util::LooksLikeNumber contains looks_like_number() like Scalar::Util's looks_like_number(), except it returns the raw value from the C function. Scalar::Util used to do this also, but it returns a booleanized value since 1.39.

Set::Infinite is a Set Theory module for infinite sets. It works with reals, integers, and objects. When it is used dates, this module provides schedule checks (intersections), unions, and infinite recurrences.

Reply is a lightweight, extensible REPL for Perl. It is plugin-based (see Reply::Plugin), and through plugins supports many advanced features such as coloring and pretty printing, readline support, and pluggable commands.

String::Random is used to generate random strings. It was written to make generating random passwords and such a little easier. See the documentation in pod format in the module for more information.

Sometimes you want roles. You're not sure about Moose, Mouse, Moo and what was that damned Squirrel thing anyway? Then there's Class::Trait, but it has a funky syntax and the maintainer's deprecated it in favor of Moose::Role and you really don't care that it handles overloading, instance application or has a workaround for the SUPER:: bug. You think a meta-object protocol sounds nifty, but you don't understand it. Maybe you're not sure you want the syntactic sugar for object declaration. Maybe you've convinced your colleagues that roles are a good idea but they're leery of dragging in Moose (your author has had this happen more than once and heard of others making the same complaint). Sometimes you just want good old-fashioned roles which let you separate class responsibility from code reuse.

SVN::Access includes both an object oriented interface for manipulating SVN access files (AuthzSVNAccessFile files), as well as a command line interface to that object oriented programming interface (svnaclmgr.pl) which is in the examples/ directory.