You delete one or all the XUSER entries stored in the XUSER program.
XUSER is not a tool for managing database users or DBM operators. It manages only the XUSER entries for these users in the XUSER program. Deleting an XUSER entry does not mean that the corresponding user is also deleted. Database users can only be deleted using an SQL statement. DBM operators can only be deleted using the Database Manager.
xuser [-U <user_key>] clear
To delete the data contained in a specific XUSER entry, use the command together with the option –U and for <user_key> specify the key name of the XUSER entry to be deleted.
To delete all the entries for the operating system user currently logged on, do not specify any options.