SETBHED - SET the fields in a SEGY Binary tape HEaDer file, as would be produced by segyread and segyhdrs              

 setbhed par= [optional parameters]                        

 Required parameter:                                       
      none                                           
 Optional parameters:                                      
      bfile=binary            output binary tape header file           
      par=              =parfile                     
 Set field by field, if desired:                           
      jobid=                  job id field                       
      lino=             line number (only one line per reel)     
      reno=             reel number                  
      format=                 data format                  
 ... etc....                                               
 To set any binary header field, use sukeyword to find out       
 the appropriate keyword, then use the getpar form:              
      keyword=value     to set keyword to value                  
 Notes:                                              
 As with all other programs in the CWP/SU package that use getpars,    
 (GET PARameters from the command line) a file filled with such  
 statments may be included via option par=parfile. In particular, a    
 parfile created by   "bhedtopar"  may be used as input for the program
 "setbhed".                                          

 Caveat: This program breaks if a "short" isn't 2 bytes since    
         the SEG-Y standard demands a 2 byte integer for ns.           


 Credits:

      CWP: John Stockwell  11 Nov 1994