Data::Locations is a virtual file manager which allows you to write and read data (text and binary) to and from virtual files (think of bubbles). Moreover, this manager allows you to (recursively) define "magic" insertion points in these virtual files (bubbles inside other bubbles) which can be filled in (inflated) later (through a "straw", i.e., the object's reference), at any convenient time and in any order you like. Since this software acts purely in memory, there is no slowing down through costly file input/output (i.e., no temporary files).
Yed is a C software library made of modules (objects) that can be instantiated according to the main paradigms of Object Oriented Programming: encapsulation and data hiding. The library contains objects that handle XML files and buffers, FTP connections, filesystem operations, and more.
MillScript-VFS is a URI-based virtual filing system for Java. It allows protocol independent access to files and folders with complete platform independence. The intention is to support any protocol and archive supported in Java, with features such as memory and disk-based caching of file content and folder listings. The API can also support artificial filing systems, such as an XML document viewed as a filing system.
Parallel File Scanner is a multithreaded parallel file scanner that combines the functionality of find, xargs, and fgrep. It has the potential of being faster than find+xargs+fgrep on systems with multiple CPUs, multiple disks, and a good file system that supports parallel operations.