KDirStat (KDE Directory Statistics) is a small utility program that sums up disk usage for direcory trees, very much like the Unix 'du' command. It displays the disk space used up by a directory tree, both numerically and graphically. It is network transparent (i.e., you can use it to sum up FTP servers), and comes with predefined and user configurable cleanup actions. You can directly open a directory branch in Konqueror or the shell of your choice, compress it to a .tar.bz2 archive, or define your own cleanup actions.
openMosix is a a set of extensions to the standard Linux kernel allowing you to build a cluster of out of off-the-shelf PC hardware. openMosix scales perfectly up to thousands of nodes. You do not need to modify your applications to benefit from your cluster (unlike PVM, MPI, Linda, etc.). Processes in openMosix migrate transparently between nodes and the cluster will always auto-balance.
FAM, the File Alteration Monitor, provides an API which applications can use to be notified when specific files or directories are changed. It comes in two parts: fam, the daemon which listens for requests and delivers notification, and libfam, a library which client applications can use to communicate with fam.
This package provides ACL support for the Linux kernel. Access Control Lists allow fine-grained access control of filesystem objects by attaching a list of permissions which grant or deny specific capabilities to users or groups. This implementation of ACL for the Linux kernel provides semantics that are almost totally compatible with the traditional POSIX umode model for applications that are unaware of the kernel support. Features include the ability to "offer" a file for chown()ing by another user.
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.
translucency is a loadable kernel module for Linux that virtually merges two directories, making it possible to overwrite files on read-only media and compile projects (such as the Linux kernel) with different options without copying sources each time. No user-space tools have to be changed. The process is also known as inheriting (ifs), stacking, translucency (tfs), loopback (lofs), and overlay (ovlfs).