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

       /OUTPUT[=filespec]

    Directs the output from the SHOW INTRUSION command to the file
    specified with the qualifier. By default, output from the command
    is displayed to SYS$OUTPUT.