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.
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.
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.
raps2 is a simple password safe. You give it a name, a password, and optional metadata, and it will encrypt and store them for you. It uses Eksblowfish for crypto, which offers a configurable key setup time, so you can make it as slow as you want. Each password is saved in a separate file, making it easy to track them in version control.
ssh-forcecommand is a script to safely execute remote commands via ssh. It is especially aimed at automated remote commands (in which ssh keys are not secured via password), where a compromise of the remote system could also compromise the local system. To prevent this, ssh-forcecommand can be invoked through the ssh configuration, which will limit the remote system so that it can only execute a set of statically defined commands. This way, compromising the local system is made much more difficult.
slackeria takes a list of projects and checks whether they are present in certain places, such as freshmeat or various distributions. If they are, their version is also reported. This makes it easy to monitor projects and, for example, to notify distributions of updates when they are lagging behind.
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.