add user to sudo group linux code example

Example 1: add user to sudoers

usermod -aG sudo username

Example 2: linux add user to group

# Change the primary group a user is assigned to, note the -g here.
# When you use a lowercase g, you assign a primary group. When you 
# use an uppercase -G you assign a new secondary group.
usermod -g groupname username

Example 3: ubuntu set sudoers to use vim

sudo update-alternatives --config editor

Example 4: linux add user to group

# add user to additional group

usermod -G groupname username

Example 5: add user to sudoers

echo "username  ALL=(ALL) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/username