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

       /OUTPUT=filespec

    Redirects command output from SYS$OUTPUT to the file named with
    the qualifier. Without a filespec, SYSMAN writes the output to
    SYSMAN.LIS in the current directory.