How to create user on Mac OSX using command line

nireport / /users name uid | grep "5[0123456789][0123456789]"
sudo niutil -create / /users/ftpuser
sudo niutil -createprop / /users/ftpuser uid 555
sudo niutil -createprop / /users/ftpuser realname "FTP User"
sudo niutil -createprop / /users/ftpuser home "/Users/ftpuser"
sudo niutil -createprop / /users/ftpuser shell "/dev/null"
sudo niutil -createprop / /users/ftpuser gid 20
sudo niutil -createprop / /users/ftpuser passwd "*"
sudo passwd ftpuser