Library /sys$common/syshlp/mnrhelp.hlb Usage Summary  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    To begin monitoring a system, issue the MONITOR command MONITOR.

    Generally, each MONITOR request runs until the time specified or
    implied by the /ENDING qualifier. To exit from MONITOR, enter the
    EXIT command at the MONITOR> prompt or press Ctrl/Z. To terminate
    a MONITOR request without exiting from the utility, press Ctrl/C.

    Information collected by MONITOR is normally displayed as ASCII
    screen images. You can use the optional /DISPLAY qualifier to
    specify a disk file to contain the information. If you omit
    the file specification, output is directed to SYS$OUTPUT. See
    the MONITOR command MONITOR for a discussion of the /DISPLAY
    qualifier.

    You can also initiate MONITOR requests from command level by
    entering the DCL command MONITOR with the desired qualifiers and
    parameters. However, in terms of conserving system resources, it
    is preferable to initiate requests in response to the MONITOR>
    prompt.