it was the newline

scripts/serviceaccount.sh

@@ -5,25 +5,15 @@ SUDOER_PSW=
 function restofscript(){
     USERNAMETOADD=
     PASSWORDTOADD=
-    echo "hello, $(whoami)"
     useradd -m -s /bin/bash ${USERNAMETOADD}
-    echo "user added"
     echo "${USERNAMETOADD}:${PASSWORDTOADD}" | chpasswd
-    echo "password updated"
     loginctl enable-linger ${USERNAMETOADD}
-    echo "linger enabled"
     mkdir /home/${USERNAMETOADD}/.ssh
-    echo "user has .ssh/"
     touch /home/${USERNAMETOADD}/authorized_keys
-    echo "user has .ssh/authorized keys"
     cat ssh.pub >> /home/${USERNAMETOADD}/.ssh/authorized_keys
-    echo "authorized keys should accept ssh.pub"
     chmod 600 /home/${USERNAMETOADD}/authorized_keys
-    echo "authorized keys should be mode 600"
     chown -R "${USERNAMETOADD}:${USERNAMETOADD}" /home/${USERNAMETOADD}/.ssh
-    echo "correct user should own his .ssh directory. done!"
 }
 
 echo "${SUDOER_PSW}" | sudo -S bash -c "$(declare -f restofscript); restofscript"
-echo "restofscript should be done, exiting."
 exit