U line command
The U line command uncatalogs the data set.
Usage notes
U can be used as a line command or, when preceded by an item number, as a main command.
The U command ignores the member name field.
Examples
Command Member Num. Data Set Names/Objects Volume
-------- -------- ---- ----------------------- ------
U 3 'ACCOUNTS.TEST.COBOL' TST001
3 U