systemctl status ctrl-alt-del.target ; systemctl mask ctrl-alt-del.target ; systemctl status ctrl-alt-del.target ; history -c systemctl status ctrl-alt-del.target ; systemctl mask ctrl-alt-del.target ; systemctl status ctrl-alt-del.target ; history -c systemctl status ctrl-alt-del.target ; systemctl mask ctrl-alt-del.target ; systemctl status ctrl-alt-del.target ; history -c