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

       /SYMBOLS (default)
       /NOSYMBOLS

    Determines whether global and local symbols (except $RESTART,
    $SEVERITY, and $STATUS) are passed to the subprocess. $RESTART,
    $SEVERITY, and $STATUS symbols are never passed to the
    subprocess.