BFF User's Guide
===========================================================================
 
   Last revised on 2008 JAN 16 by B. V. Semenov.
 
 
Abstract
--------------------------------------------------------
 
   BFF is a command line program that displays the binary file format ID
   for one or more binary kernel files.
 
 
Summary
--------------------------------------------------------
 
   BFF -- ``Binary File Format'' -- is a command line program that displays
   the binary file format ID for one or more binary kernel files specified
   on the command line.
 
 
Usage
--------------------------------------------------------
 
   The program usage is:
 
      % bff <file1> [<file2> .... <fileN>]
 
   When the program is run with a single file name on the command line it
   displays only the binary file format ID for that file:
 
      <bff>
 
   When the program is run with two or more file names on the command line
   it displays the binary file format ID followed by the file name for each
   of the input files on a separate line:
 
      <bff>    <file1>
      <bff>    <file2>
      ...
      <bff>    <fileN>
 
   The binary file format ID, <bff>, is 'BIG-IEEE', 'LTL-IEEE', 'VAX-GFLT',
   'VAX-DFLT' or 'UNK' for binary DAF and DAS files or 'N/A' for all other
   types of files.
 
   If the command line is blank or contains the '-h', '-help', '-u', or
   -usage' keys, the program displays usage.
 
 
Examples
--------------------------------------------------------
 
   In this example the program is run to display the binary file format ID
   for a single SPK file in the current directory:
 
      % bff mer2_surf_rover.bsp
      BIG-IEEE
      %
 
   In this example the program is run to display the binary file format ID
   for all CK, SPK, FK, and transfer SPK files in the current directory:
 
      % bff ./*.bc ./*.bsp ./*.tf ./*.xsp
      BIG-IEEE ./MRO_PHX_EDL_07260_PASS1_sc_20070917181502.bc
      LTL-IEEE ./070416BP_IRRE_00256_14363.bsp
      LTL-IEEE ./mars_north.bsp
      BIG-IEEE ./mer2_surf_rover.bsp
      LTL-IEEE ./sb406-20pb.bsp
      LTL-IEEE ./zero_offset.bsp
      N/A      ./vo.tf
      N/A      ./mgn06127.xsp
      %