SORT   FIELDS=(3,4,CH,A)
 OPTION COPY,SKIPREC=10,CKPT
 MODS E15=(E15,1024,MODLIB),E35=(E35,1024,MODLIB)

SORT

The sort statement is ignored because the COPY option has been specified.

COPY

The copy processing is always done on a record-by-record basis. Each record is therefore read from SORTIN, passed to the E15 exit, passed to the E35 exit, and written to SORTOUT. (Contrast this with a sort, where all the records are read from SORTIN and passed to the E15 exit before any records are passed to the E35 exit and written to SORTOUT.)

SKIPREC

Ten records are skipped before copying starts.

CKPT

The checkpoint option is not used for copy applications.