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NAME

       hdfpack - compress an HDF file

SYNOPSIS

       hdfpack [-i|-b] [-d data-descriptors-per-block] [-t linked-blocks-per-
              table-entry] input-hdf-file output-hdf-file

DESCRIPTION

       hdfpack compresses all of the data  in  an  HDF  file  and  writes  the
       compressed data to a second HDF file.

OPTIONS

       -b     Non-coalesced  Blocks.   hdfpack  will not coalesce linked-block
              elements.

       -i     Interactive Mode.  hdfpack will  prompt  for  each  linked-block
              element.

       -d num Write   an  output  file  with  the  specified  number  of  data
              descriptors per block of data descriptors.

       -t num Write an output file with the specified number of linked  blocks
              per table entry.

EXAMPLES

       To  compress  the  data  in  the  file  named  "aa.hdf"  and  store the
       compressed data in the file named "aa.cmp", use the  following  hdfpack
       command:

               hdfpack aa.hdf aa.cmp

       Suppose  a  file  named  "bb.hdf"  contains  data  elements  stored  as
       sequences of linked blocks. The following  hdfpack  command  compresses
       the file while leaving the linked-block elements intact, and writes the
       compressed data to a file named "bb.blk".

               hdfpack -b bb.hdf bb.blk

SEE ALSO

       hdfcomp(1), hdf(5)

                               November 6, 1999                     HDFPACK(1)