VMS Help MMS, Qualifiers, /LIST  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    /LIST[=filespec]
    /NOLIST (D)

    Controls whether MMS writes dependencies and action lines to
    an output file as it processes the description file. These
    qualifiers affect the behavior of MMS, but not the execution
    of action lines.

    When you specify the /LIST qualifier, MMS creates a complete
    listing of all dependencies, dependents, and actions that need
    to be processed to update the target. MMS creates this listing as
    it processes the description file and writes the listing to the
    output file, or to SYS$OUTPUT if you did not specify a file.

    The /LIST qualifier is useful during the debugging of description
    files. You can also use /LIST in combination with the /NOACTION
    qualifier to display the dependency list and action lines without
    executing any actions.