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NAME
     rgb - build the color name database

SYNOPSIS
     rgb [ dbname ]

DESCRIPTION
     rgb reads from standard input lines of the form:

          red  green  blue      name

     where red / green / blue  are  decimal  values  between  the
     range 0 to 255, and name is a description of the color.  rgb
     then builds a color name database in dbm format.  The  color
     name  database  provides a mapping between ASCII color names
     and RGB color values.  It is useful for increasing the  por-
     tability  of color programs.  The input source for the data-
     base is in /usr/openwin/lib/rgb.txt.   rgb.txt  is  compiled
     into  the  dbm  files  rgb.dir and rgb.pag.  When the server
     first starts up, it consults the contents of these files  to
     build  an  internal  representation of their contents.  This
     internal representation is consulted to map color  names  to
     color values.

     rgb   uses   the   default   color    name    database    of
     /usr/openwin/lib/X11/rgb.txt.

OPTIONS
     dbname    Color name database.

EXAMPLES
     example% rgb rgb < rgb.txt

     example% cat /usr/openwin/lib/rgb.txt

FILES
     /usr/openwin/lib/rgb.txt      color  name  database  source.
                                   Maps  color names to RBG color
                                   values.
     /usr/openwin/lib/rgb.dir      dbm file containing color name
                                   to RGB mapping.
     /usr/openwin/lib/rgb.pag      dbm file containing the  color
                                   name to RGB mapping.

SEE ALSO
     bldrgb(1), cat(1), dbm(3)

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