Adding an admin account in Linux/Fedora

Multiple "Admin" account is possible in Linux.

First create an account & set the password.
Commnad: useradd -g users admin1 [Create a user with name admin1 in users group].

Now edit the corresponding line in /etc/passwd file.
Put zero in third field(user id) and zero in forth field(group id).
Save the file

Now log on to the system with this new account.
You will get "#" prompt!!