username

    Specifies the DCE$UAF record that is to be modified.

 dce-name

    Specifies the new DCE principal name to be associated with
    username. If the principal exists in a different DCE cell from
    the current DCE cell then specify the DCE name in the format
    principal@cell.

    If the DCE name contain lowercase characters, spaces, or other
    special characters, enclose the entire string is quotes.

    If this parameter is not specified then the DCE principal is not
    changed.