Writes the system parameters back to the location specified in
    most recent USE command (including the implicit USE ACTIVE
    command when SYSGEN is first invoked).

    This command works after a USE for a filename, for CURRENT, and
    for ACTIVE.  It generates an error message if the most recent
    USE command was "USE DEFAULT".

1  –  Parameters

    None.

2  –  Qualifiers

    None.