/HEAD[=count]

   Extract records from the beginning of the file(s).  'count' is the
   number of records to extract; if not present, the default value is 22.

   A negative 'count' value designates the number records at the end of
   the file to omit.  That is, /HEAD=-5 will extract every record in the
   file except for the last 5.

   Incompatable with /BLOCKS, /RECORDS, and /TAIL.