The Choppy Cluster Utilities are the basic file, shell and text manipulation utilities of the GNU operating system and HPC Cluster. These are the cluster utilities which are expected to exist on every operating system or HPC Cluster.
CKAN is an open-source DMS (data management system) for powering data hubs and data portals. CKAN makes it easy to publish, share and use data. It powers datahub.io, catalog.data.gov and europeandataportal.eu/data/en/dataset among many other sites.