In this short tutorial I will explain how to create a user in Linux and configure that user to have sudo privileges.
Step 1: Create the user using useradd command.
Step 2: Setup password for the user using the passwd command.
Step 3: Add the user to the wheel group. Once the user is added to the wheel group, it will have sudo privileges.
usermod -aG wheel username
Step 4: For passwordless sudo access you need to uncomment or add the NOPASSD entry in the sudoers file. Open the sudoers file using visudo and add the wheel entry,
%wheel ALL=(ALL) NOPASSWD: ALL
Now the user you created will have sudo access.