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25 The 'gdbm_dump' utility
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The 'gdbm_dump' utility creates a flat file dump of a 'GDBM' database
(*note Flat files::).  It takes one mandatory argument: the name of the
source database file.  The second argument, if given, specifies the name
of the output file.  If not given, 'gdbm_dump' will produce the dump on
the standard output.

   For example, the following invocation creates a dump of the database
'file.db' in the file 'file.dump':

     $ gdbm_dump file.db file.dump

   By default the utility creates dumps in ASCII format (*note ASCII:
Flat files.).  Another format can be requested using the '--format'
('-H') option.

   The 'gdbm_dump' utility understands the following command line
options:

'-H FMT'
'--format=FMT'
     Select output format.  Valid values for FMT are: 'binary' or '0' to
     select binary dump format, and 'ascii' or '1' to select ASCII
     format.

'-h'
'--help'
     Print a concise help summary.

'-V'
'--version'
     Print program version and licensing information and exit.

'--usage'
     Print a terse invocation syntax summary along with a list of
     available command line options.