[CentOS] Determine next UID number

Wed Oct 13 20:48:45 UTC 2010
Terry Polzin <foxec208 at wowway.com>

> > That assumes the highest UID number has a login shell...

> which is generally the case...
Exactly, without excluding those who have a shell of nologin the last
uid on my machine is nfsnobody(65534), I don't believe that a UID can be
greater than that.