[code]adduser -d /home/USERNAME -m  USERNAME[/code]

-d  means  — The new user will be created using HOME_DIR as the value for the user´s login directory.

-m means — Create the user´s home directory if it does not exist.

[code]usermod -G group1, group2, group3 USERNAME[/code]

-G means — a list of supplementary groups which the user is also a member of.