OPTION COPY
  OUTFIL OMIT=(56,6,CH,EQ,C'******'),
    OVERLAY=(121:SEQNUM,8,ZD,56:56,6,TRAN=UTOL)

This example illustrates how you can use the OVERLAY parameter with OUTFIL to add sequence numbers at the end of your records, and to convert uppercase EBCDIC characters to lowercase EBCDIC characters in certain columns, without affecting the rest of the record.

The input data set has RECFM=FB and LRECL=120. The output data set will have RECFM=FB and LRECL=128.

The OMIT parameter removes records which have asterisks in positions 56-61.

121:SEQNUM,8,ZD in the OVERLAY parameter adds an 8-byte sequence number in positions 121-128 of every record. The LRECL is increased from 120 to 128 to hold the sequence number.

56:56,6,TRAN=UTOL in the OVERLAY parameter converts uppercase EBCDIC characters in positions 56-61 to lowercase EBCDIC characters in positions 56-61.

Only the two overlaid fields are changed; all of the other data in the records is unaffected.