[cobalt-users] Dissapearing user

["Jossi Fresco" <jfresco@xxxxxxx>]

I added a user that his full name contained an apostrophe (e.g. O'Brian).
The user does not show on the user list, although when I tried to add the
same user again, it tells me that the user already exist.

How can I edit the user name manually using the shell?

Thanks,

--Jossi