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bashburn
mybashburn

#!/bin/bash

DEV="/dev/cdrom"

DATA=file01.bak
DATA_CAP=$(( `ls -s "$DATA" | cut -f1 -d" "` * 1024 ))
DISC_STAT=`dvd+rw-mediainfo /dev/cdrom | awk '/Disc status:/ {print $3}'`
DISC_CAP=`dvd+rw-mediainfo /dev/cdrom | grep 'READ CAPACITY:' | cut -f2 -d"="`
DISC_FULL=4300000000

echo "nagrywam: $DATA"
echo "o wielkości: $DATA_CAP"
echo "stan nośnika: $DISC_STAT"
echo "zajętość nosnika $DISC_CAP"
echo "dopuszczalna zajętość nośnika: $DISC_FULL"

if [ "$((DISC_CAP+DATA_CAP))" -gt "$DISC_FULL" ]; then

    echo "nima miejsca, nie bede nagrywał"
    eject
    exit
fi


if [ "$DISC_STAT" == "blank" ]; then

    echo 'empty -> write_disc'
    growisofs -speed=8 -Z $DEV -R -J $DATA

elif [ "$DISC_STAT" == "appendable" ]; then

    echo 'is_session -> write_disc'
    growisofs -speed=8 -M $DEV -R -J $DATA

else echo "cos nie gra" | mail admin@redtube.com
fi