PirateWall is a simple Twitter Client. It displays search results for a certain keyword or hashtag in realtime in a shell-based environment. It can also be configured to act as a data provider for many different visualization tools. For example, it is possible to use the client as a text generator for many XScreensaver applications like "apple2" or "starwars". When used in a Unix shell environment, colorized output can be generated.
Rerun is a lightweight tool-building framework useful to those implementing management procedure with shell scripts. It will help you organize your implementation into well-defined modular interfaces. Collections of management modules can be archived and delivered as a single executable to facilitate team handoffs. Using the "stubbs" module, rerun will even facilitate unit tests. When users execute rerun module commands, rerun can record execution data into log files which can later be replayed.
JCR Shell is a shell interface to manage JCR repositories like Apache Jackrabbit, Hippo CMS 7, and other JCR 1.0 (JSR 170) capable repositories. It uses RMI to communicate with the server. It features tab completion on names, types, and properties, the ability to import and export XML, a JCR diff tool, queries, reference lookups, and namespace management.