To invoke INSTALL, enter the DCL command INSTALL at the DCL
    prompt as follows:

    $ INSTALL

    The utility responds with the following prompt:

    INSTALL>

    You can then perform INSTALL operations by entering the
    appropriate INSTALL commands.

    To exit from the Install utility, enter the EXIT command at the
    INSTALL> prompt or press Ctrl/Z. Either method returns control to
    the DCL command level.

    Alternatively, you can enter a single INSTALL command on the same
    line as the command that invokes the utility, for example:

    $ INSTALL LIST/FULL SYS$SYSTEM:LOGINOUT