id-name

    Specifies the identifier name. The identifier name is a string of
    1 to 31 alphanumeric characters. The name can contain underscores
    and dollar signs. It must contain at least one nonnumeric
    character.

 user-spec

    Specifies the UIC identifier that uniquely identifies the user
    on the system. This type of identifier appears in alphanumeric
    format, not numeric format; for example, [GROUP1,JONES].