user management

create user

• useradd john

• set password passwd john

• create user with root privilages: useradd -ou 0 -g 0 john

  • check if id are set correctly:

    $ grep john /etc/passwd
    john:x:0:0::/home/john:/bin/sh
    

  • add user to root group usermod -a -G root john

• delete user userdel john