about sudo and su

[Corwin]

Corwin wrote:
> Mihamina Rakotomandimby (R12y) wrote:
>   
>> On 05/12/2009 11:23 AM, Corwin wrote:
>>   
>>     
>>> for a terminal use you just type
>>> "ubuntu su"
>>>     
>>>       
>> Yes, but you should explain a bit more.
>> I use "sudo -s" or "su -".
>>
>>   
>>     
>
>  sudo su  in a terminal window
> lets you stay root for as long as
> that terminal is open
> indefinetely
>
> corwin
>
>   

I forgot to mention that once you have been
root by using "sudo su" you "stay" root
even if you return to you own id as long
as that terminal window is open you stay root  stays open
all you have to do is type "sudo su"
and you are root again without having to type
the administrative password.Any number of times.
eventually you get kicked out but how long does it take
anyone?