Retry backup or restore operation a certain number of times if there is an error. This option is added because some older drives might fail once in a while for no apparent reason. This would hang the startup script, wich would have to be ended with ctrl-c. Only using console ioctl to beep the bell on linux. Other platforms may live without this little gimmick.
Curses based interface shows progress while doing single backup's.
This interface will later also be used for list and restore operation. Later on there will be a sitback version for X where Qt is used to provide the user interface. Bad symlinks is now just reported to the log but the operation continues. Changes in the script parser. Invalid directives is now reported to the log.