zssh (Zmodem SSH) is a program for interactively transferring files to a remote machine while using the secure shell (ssh). It is intended to be a convenient alternative to scp, allowing to transfer files without having to open another session and re-authenticate oneself. zssh is an interactive wrapper for ssh used to switch the ssh connection between the remote shell and file transfers. Files are transferred through the zmodem protocol, using the rz and sz commands.
zstar (z*) Networked 3D project is an extensible, distributed system for 3D application and game development, consisting of an abstract game client (similar in concept to the one that xpilot uses) and a game server to which players connect to play games against other players or alone. This framework should be suitable for FPS, VR, MUDs, or any application that requires 3D and networking. The Win32 version currently only runs under Cygwin.
zsync is a implementation of rsync over HTTP. It allows updating of files from a remote Web server without requiring a full download or a special remote server application. It uses a metafile, which is created on the server, to determine which parts of a file the user already has; it then downloads the remaining parts via HTTP. No special server or Web server module is needed. It also works with gzip files, and content on the server can be compressed to further reduce download times.
zufall is a simple program to change the background periodically. It takes one or more directories with images as a parameter (no GUI) and sets a randomly chosen image as background. If there is a border remaining, its color is the average color of two corners of the image. This mostly fits the image very well. It doesn't work if the root window is hidden by another program, like in Gnome or KDE. However, it is possible to execute a configurable command to effect the change whenever the image is supposed to change. A script to do this in Gnome is included.