Debian Add User

If you want to give the user 'John Smith' a login account you could run 'useradd jsmith' to create a login for him.

Once this is done there are two more things you need to do - set the password for this account (they can change it themselves later) - you can do this by running 'passwd jsmith'

The next thing you need to do is make a home directory for them. This will normally just involve running:

mkdir /home/jsmith
chown jsmith:users /home/jsmith

This creates a directory with the same name as the login account beneath the /home directory - then changes it to be owned by the user.