CLOPS generates a Java command-line parser and documentation, given a description of command-line options in a custom language. The user can explicitly express dependencies between the individual options such as exclusion or overrides.
UraniaCast is a non-interactive podcast downloader. It works from the command line and supports filtering by categories and media types.
TunnelIt is a simple tool that uses the TUN/TAP driver to tunnel Ethernet networks over IP connections. Its simple command line interface is meant to resemble "netcat" where it is logical to do so.
Plemp is a command line tool for uploading photos to flickr. It has a GTK-based status window, and therefore is ideal to use from third-party applications like Bibble.
Countdown is a command-line program that is similar to the UNIX sleep command, but displays the amount of time remaining before the timeout.
A frontend for ClamAV.
A graphical client for MTP devices.