[RHCE] Can't able to create user with DOTS?

[Brad Oaks]

Jon Carnes wrote:

>Very interesting...
>
>You can create a user with a DOT in the name, you just can't use any of
>the graphics tools to do it.  If you manually edit the files:
>  /etc/passwd
>  /etc/shadow
>  /etc/group
>
>You can add users and groups with a period "." in the name.  You could
>file this as a bug, since obviously the system has no problems with the
>"." in the name - it's only the useradd application that apparently has
>the problem.
>
>Jon Carnes
>
>  
>
Hi Navneet,

User names with dots in them may cause problems for some users of the 
chown command.  This is deprecated now, but has been around for a while 
that you could perform your chgrp and chown operations in one command.  
e.g. "chown braduser.bradgroup /home/brad"  The new syntax for the same 
operation is to use a colon as the seperator.  e.g. "chown 
braduser:bradgroup /home/brad"

FYI,
--bradoaks