Bash script Fehler nach wechsel von squeeze auf wheezy

r# ./muell.sh
./muell.sh: line 12: [: 10 W: integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected
./muell.sh: line 8: [: : integer expression expected

#!/bin/bash


Monat=$(date -d "tomorrow" +'%m')
Tag=$(date -d "tomorrow" +'%d')


while IFS= read -r line; do


if [ "${line%%-*}" -eq $Monat ]
then
    	line1=${line%%_*}
    	line1=${line1#*-}
    	if [ "$line1" -eq $Tag ]
    	then
            	line=${line#*_}
            	i=0
            	i=${#line}
            	while [[ $i -ge 1 ]]
            	do
                    	i=$i-2
                    	case $line in
                      	*P*)
                            	echo 4 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Papier"
                            	echo $line
                            	;;
                      	*R*)
                            	echo 5 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Rest"
                            	echo $line
                            	;;
                      	*G*)
                            	echo 3 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Gelb"
                            	echo $line
                            	;;
                      	*B*)
                            	echo 1 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Bio"
                            	echo $line
                            	;;
                      	*C*)
                            	echo 2 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Bio-reinigen"
                            	echo $line
                            	;;
                      	*S*)
                            	echo 6 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Sondermuell"
                            	echo $line
                            	;;
                      	*W*)
                            	echo 7 | nc -p 6902 -u  192.168.1.22 6902 -q1
                            	echo "Weihnachtsbaum"
                            	echo $line
                            	;;


                      	*)
                            	echo "andere"
                            	echo $line
                            	;;
                    	esac
                    	line=${line#*-}
            	done
    	fi
fi


done < /mnt/muellkalender/mkalender2016