which distro are you using? For example on SuSe there is an all in one graphical system config utility that you can add users set security settings, add software and a host of other things, Mandrake ...

Linux is a multi-user environment where numerous user accounts can be added and used like most operating systems. However, you might be surprised by how easy it is to create a new user on Linux. To ...

Although it is often simplest to add a new user to a computer running Mac OS X using the built-in graphical interface, you may prefer to do so from a Terminal window, perhaps because you are ...