unpack the file    ...tgz      (tar xzvf ...)
# vi config.h  instala  #  you can change the directory for the decision trees
sh instala
make depend
make ocre
ocre .....pgm 
      # waits you to enter the leter displayed  (with RETURN)

# as root
make install installman

ocre.1   manual
ocre -h  options, help
       
#
# make uninstall uninstalldcsw