/sys$common/syshlp/helplib.hlb SHOW, ENTRY, Qualifiers, /USER_NAME  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /USER_NAME=username

    Selects for display those jobs owned by the specified user. If
    the /USER_NAME qualifier is not specified, information about
    your own jobs is displayed. The name must be 1 to 12 alphanumeric
    characters.