/RECORDS[=(option,...)]
Similar to DUMP/RECORDS but with more flexibility in indicating which
records. Extracts specified records from the input file(s).
Up to two of the following options may be specified; if more than one
is used, separate them with a comma and enclose the list in parentheses.
START=m starting record number; the first record in the file is 1.
A negative value specifies a number of records relative
to the end of the file: -1 is the last record, -2 is the
one before that, etc.
END=n ending record number; the last record of the file is
considered to be record number -1.
COUNT=k number of records to extract. If START is specified, END
is derived by adding COUNT-1 to it; if END is specified,
START is derived by subracting COUNT-1 from it; if neither
is specified, START is 1 and END is set to COUNT.
Incompatable with /BLOCKS, /HEAD, and /TAIL.