notes/ubuntu/users.md

add a new user and then add to multiple groups adduser user_name usermod -a -G adm,sudo user_name chfn -> changes full name

change a ownership chown file_or_dir user_name chgrp file_or_dir user_name

delete user userdel user_name adduser -> high-level useradd -> low-level

adduser fc_api usermod -a -G sudo fc_api

chown user_name directory/ chgrp user_name directory/