How to add a user to the sudo group

Create a user and add them to the sudo group

The user must exist before adding them to the sudoers.

sudo adduser new_user
sudo adduser new_user sudo

For a script, prefer the lower level tools that are useradd, groupadd, and usermod. For instance, to modify an already existing user and add them to the sudo group:

sudo usermod -aG sudo new_user

Obviously, don’t type sudo if you run these commands as root.

Verify group membership

groups

Remove a user from a group

sudo deluser username group

• Debian Wiki - sudo
• Ubuntu Wiki - sudo