#!/bin/bash

SUDOER_PSW=

function restofscript(){
    USERNAMETOADD=
    PASSWORDTOADD=
    useradd -m -s /bin/bash ${USERNAMETOADD}
    echo "${USERNAMETOADD}:${PASSWORDTOADD}" | chpasswd
    loginctl enable-linger ${USERNAMETOADD}
    mkdir /home/${USERNAMETOADD}/.ssh
    touch /home/${USERNAMETOADD}/authorized_keys
    cat ssh.pub >> /home/${USERNAMETOADD}/.ssh/authorized_keys
    chmod 600 /home/${USERNAMETOADD}/authorized_keys
    chown -R "${USERNAMETOADD}:${USERNAMETOADD}" /home/${USERNAMETOADD}/.ssh
}

echo "${SUDOER_PSW}" | sudo -S bash -c "$(declare -f restofscript); restofscript"
exit