BleachBit deletes junk to recover disk space and maintain privacy. It rids your system of old junk including cache, Internet history, temporary files, unused locale files (better than localepurge), logs, and cookies. Designed for Linux systems, it wipes clean 50 applications including Adobe Reader, Bash, Firefox, Flash, OpenOffice.org, Opera, Real Player, Skype, and more. It shreds files so that they cannot be recovered, and it wipes free disk space to hide insecurely deleted files. It offers both a simple PyGTK GUI and a command line interface for automation.
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.