small changes, see diff
-rw-r--r-- 548 README
-rwxr-xr-x 5432 backup.sh
-rwxr-xr-x 424 check_dsl.sh
-rwxr-xr-x 387 check_exam_results.sh
-rwxr-xr-x 566 logrotate.sh
-rwxr-xr-x 414 present_hdw_scripts.sh
-rwxr-xr-x 538 sync.sh
-rwxr-xr-x 528 unreal_update.sh