Prompt_Timeout=seconds
    Noprompt_Timeout

    Allows you to specify the user prompt timeout interval, in
    seconds. The default value is 60 seconds.

    If you specify the Noprompt_Timeout qualifier or the Prompt_
    Timeout=0, the RMU Show Statistics command does not time out any
    user prompts. Note that this can cause your database to hang.

                                   NOTE

       Oracle Corporation recommends that you do not use the
       Noprompt_Timeout qualifier or the Prompt_Timeout= 0
       qualifier unless you are certain that prompts will always
       be responded to in a timely manner.

    If the Prompt_Timeout qualifier is specified with a value greater
    than 0 but less than 10 seconds, the value 10 is used. The user
    prompt timeout interval can also be specified using the PROMPT_
    TIMEOUT configuration variable.