Explanation

(dsname/password ...) is a required positional parameter that specifies the name of a migrated data set or list of names of migrated data sets that you want to delete. For dsname, substitute the name of the migrated data set you want to delete. You can use a data set filter for any dsname in a list. See Specifying data set names for a discussion of how to specify data set names. For VSAM data sets, only the base cluster name can be specified. For non-VSAM data sets, only the true name can be specified. Other names, such as migration names, cannot be specified.

For password, substitute the correct password and include the preceding slash (/). TSO does not prompt you for the password. Password protection does not apply to SMS-managed data sets; if a password is specified, it is ignored.

For a password-protected non-VSAM data set, you must supply the password that allows you to write to the data set.
For a password-protected VSAM data set, you must supply the master password of the base cluster.