Script to automate Ubuntu User creation with SSH Key access

create_ubuntu_user.sh

#!/bin/sh

public_key="<provide your public key here>"

sudo adduser --disabled-password --gecos "" testuser
sudo usermod -aG sudo testuser
sudo mkdir -p /home/testuser/.ssh && sudo touch /home/testuser/.ssh/authorized_keys
sudo chmod 700 /home/testuser/.ssh && sudo chmod 600 /home/testuser/.ssh/authorized_keys
sudo chown -R testuser /home/testuser/.ssh
sudo sh -c "echo $public_key > /home/testuser/.ssh/authorized_keys"
sudo sh -c "echo 'testuser ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/testuser-user"