Zoidberg (a.k.a. zoid) provides a modular Perl shell written, configured, and operated entirely in Perl. It aspires to be a fully operational login shell with all the features one normally expects. But it also gives direct access to Perl objects and data structures from the command line, and allows you to run Perl code within the scope of your command line.
rackview is a tool for visualizing the layout of rack- mounted equipment. It can load data either from database tables or a flat file. It can be used to assist in planning and tracking hardware changes to racks in a data center, and to provide a host-oriented interface into other database tools. The core of rackview is implemented as a Perl module, which can be integrated into a variety of different tools. Sample command line and CGI scripts are included, which should be sufficient for basic needs.
Sprog is a graphical tool that anyone can use to build programs by plugging parts together. In Sprog jargon, the parts are known as 'gears' and they are assembled to make a 'machine'. Gears are selected from a palette and dragged onto the Sprog workbench, where they can be connected together. Options can be set using a properties dialog on each gear. When assembly is complete, the machine can be run, reconfigured, or re-run.