Vobcopy copies DVD .vob files to hard disk (thanks to libdvdread), decrypting them on the way (if libdvdcss is installed) and merges them into 2 GB files (or larger) with the name extracted from the DVD. It checks for enough free space on the destination drive and compares the copied size to the size on DVD (in case something went wrong during the copying). It can also mirror a whole DVD video part and copy single files.
AutoUpdate is a Perl script which performs a task similar to Red Hat's up2date or autorpm. It can be used to automatically download and upgrade RPMs from different HTTP(S) or (S)FTP sites, while also handling dependencies. Moreover, it can also be used to keep a server with a customized (Red Hat) distribution plus all clients up to date.
Unison is a file-synchronization tool for Unix and Windows. It allows two copies of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other. Unison can deal with updates to both replicas of a distributed directory structure. Updates that do not conflict are propagated automatically. Conflicting updates are detected and displayed. Unison can communicate through a direct socket link or through an rsh/ssh tunnel. It uses network bandwidth efficiently.
JSX serializes Java objects to XML. You can persist objects, evolve them, and send them over the network and between applications. Your object data becomes human-readable and human-writable. You can test it, search it, profile it, audit it, and edit it with ordinary text and XML tools. JSX handles all POJOs and also all classes that require Java's own object serialization.
g4u ("ghost for unix") is a boot-floppy/CD that allows one to easily clone PC hard disks by using FTP. This is often done to deploy a common setup on a number of PCs. The floppy/CD offers two functions: it uploads the compressed image of a local hard disk to an FTP server, and then it can retrieve that image via FTP, uncompress it, and write it back to disk. Network configuration is fetched via DHCP. As the hard disk is processed as an image, any filesystem and operating system can be deployed using g4u. Easy cloning of local disks as well as partitions is also supported.