Restrict update and delete access to a single operator identifier.
The group or list can be used, looked at, and copied by other users of RDO, but cannot be changed or deleted by them.
You can LOCK a nonexistent group or list, thereby reserving the named group or list for your own future use.
The only RDO command that releases a lock is the UNLOCK command. No other RDO commands can unlock a group or list. For example, if you DELETE all the resources in a group, or all the groups in a list, the lock remains.
You must specify either GROUP or LIST, even if you are locking the current group or list.
A generic group or list name is not accepted.
LOCK LIST(L1)
LOCK GROUP(G1)