undo sudo

[Mario Vukelic]

On Wed, 2008-05-21 at 11:25 -0700, Steve Lamb wrote:
> The elevated privilege is not a state thus any time you need to run a
> sequence of commands which require it as a state it fails.  Yes, I
> consider having to prefix multiple commands with sudo as a failure,
> esp
> when some of those commands are shorter than sudo, such as the above
> case with ls.
> 
>     Of course I get around it by simply putting the following alias in
> my
> .zshrc file on Ubuntu systems:
> 
> root = "sudo su -s"
[etc]

What's wrong with sudo -i and sudo -s ?