Shell Programming and Scripting

sizes=`fdisk -l | grep "Linux"` #s
sizes_expanded=$(echo $sizes | sed 's/\(.\)/\1/g') #e
sizes_array=($sizes_expanded) #a

for i in $(seq 0 $(((${#sizes_array[*]} - 1)/6))); do
start_size=$(((6*$i) + 1))
echo "Start addresses = sizes_array[$i]=\"${sizes_array[(((6*$i) + 1))]}\""
done

ends=`fdisk -l | grep "Linux"` #s
ends_expanded=$(echo $ends | sed 's/\(.\)/\1/g') #e
ends_array=($ends_expanded) #a

for i in $(seq 0 $(((${#ends_array[*]} - 1)/6))); do
start_size=$(((6*$i) + 1))
echo "End addresses = ends_array[$i]=\"${ends_array[(((6*$i) + 2))]}\""
done

#########################################################################
#Now calculate the size from the start and end addresses
#########################################################################

declare -a size_arr
for k in $(seq 0 $(((${#sizes_array[*]} - 1)/6))); do
size_arr[$k]=$(($ends_array[$k]-$size_array[$k]))
echo $size_arr[$k]
done
exit 0

Succeeded! Disks found on this machine
Number of Disks on this machine: 2
/dev/hda
/dev/hdd
Start addresses = sizes_array[0]="1"
Start addresses = sizes_array[1]="1001"
Start addresses = sizes_array[2]="2940"
Start addresses = sizes_array[3]="4879"
Start addresses = sizes_array[4]="5849"
Start addresses = sizes_array[5]="8781"
Start addresses = sizes_array[6]="10720"
Start addresses = sizes_array[7]="7788"
Start addresses = sizes_array[8]="1"
Start addresses = sizes_array[9]="3877"
Start addresses = sizes_array[10]="7753"
End addresses = ends_array[0]="1000"
End addresses = ends_array[1]="2939"
End addresses = ends_array[2]="4878"
End addresses = ends_array[3]="5848"
End addresses = ends_array[4]="7787"
End addresses = ends_array[5]="10719"
End addresses = ends_array[6]="16644"
End addresses = ends_array[7]="8036"
End addresses = ends_array[8]="3876"
End addresses = ends_array[9]="7752"
End addresses = ends_array[10]="10859"
./part: line 67: /dev/hda1[0]-[0]: syntax error: operand expected (error token is "/dev/hda1[0]-[0]")