M — move data set or member(s)

Use option M to move a data set. You can specify either a DASD-resident sequential or partitioned data set for both the "From" or "To" data sets.

Option M causes data sets to be deleted after they have been successfully moved to the "To" data set, as follows:

If the "From" data set is partitioned, the selected members are deleted from it.
If the "From" data set is sequential, the complete "From" data set is deleted.