db-ris is an interface to the DeutscheBahn arrival/departure monitor available at http://reiseauskunft.bahn.de/bin/bhftafel.exe/dn. It takes a station name (and optional date and time) and reports all arrivals or departures at that station. This distribution ships the CLI application db-ris and the Perl library Travel::Status::DE::DeutscheBahn.
dthumb is a quite simple image list script. It will create an index.xhtml containing a thumbnail list of all images in the current directory. Of course, every thumbnail links to the full-size image. It also features a Javascript lightbox so that you don't have to press the back button all the time when viewing a full-size image.
feh is a fast, lightweight image viewer that uses imlib2. It is command line-driven and supports multiple images through slideshows, thumbnail browsing or multiple windows, and montages or index prints using TrueType fonts to display file information. Advanced features include fast dynamic zooming, progressive loading, loading via HTTP (with reload support for watching webcams), recursive file opening (slideshow of a directory hierarchy), and mouse wheel and keyboard control.
hashl creates a database with partial file hashes. It is useful for checking if you already have a copy of files before transferring them over a slow network. It does this by hashing only the first few MiB of every file. This gives it a huge speed advantage at the cost of possible (though pretty improbable) false positives.
icli is a command line interface to the Icinga monitoring software. You can use it to list service/host status with many filtering options, schedule rechecks, and acknowledge service problems. Basic support for viewing the command queue and scheduled downtimes is also present. It is largely compatible with Nagios.