CAPS

What: CAPS

 Where: http://www.dar.csiro.au/rs/Capshome.html (broken link Sept 21, 2011)
        http://freshmeat.net/projects/hdf/
 Description: Tcl extension that provides general array processing capabilities
        (via the numerica array processor command - nap) and
        specific satellite data processing functions.  This package also
        supports binary I/O and Hierarchical Data Format (HDF) file I/O.
 Updated: 02/2003
 Contact: mailto:paul.holper@dar.csiro.au

Or were you looking for Caps Lock?

[Paul Holper]

AM (22 september 2011) This one is still alive: http://www.eoc.csiro.au/cats/caps/caps/caps_index.html