This is a small subset of code originally written to support the
  Berkeley Automatic Imaging Telescope (BAIT).  You can read about
  BAIT at (this URL should all be together on one line)

       http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993PASP..
          105.1164R&db_key=AST&link_type=ABSTRACT&high=3e7fc13bbf14658

  The code has been mangled to remove everything which isn't needed
  for the two executables:
 
                         picksym   and   putsym

  which simply read or write material to the headers of either a true
  FITS or a "pseudo-FITS" file (plain ASCII with newlines that _looks_
  like a FITS header.

  These programs are used as part of a pipeline which reduces images
  taken by the TASS collaboration: www.tass-survey.org   They might
  be useful in other situations when one wants to modify FITS headers
  via command-line programs, as in a script.

      Michael Richmond