Shell Programming and Scripting

previous_tmp0=`cat tmp0.txt`
previous_tmp1=`cat tmp1.txt`
previous_tmp2=`cat tmp2.txt`
previous_tmp3=`cat tmp3.txt`
previous_tmp4=`cat tmp4.txt`
previous_tmp5=`cat tmp5.txt`
previous_tmp6=`cat tmp6.txt`
previous_tmp7=`cat tmp7.txt`

for i in 0 1 2 3 4 5
do
echo "$previous_tmp$i"
if [ ${ARRAY_MOUNT_POINT_CAPACITY[$i]} -eq $previous_tmp$i]
then
    echo "File Size Same of ${ARRAY_MOUNT_POINT_NAME[$i]}"
elif [ ${ARRAY_MOUNT_POINT_CAPACITY[$i]} -gt $previous_tmp$i ]
then
   echo "Mount Point Increase"
else
   echo "Mount Point Decrease"
fi
done

previous1=aaa
x=1
var=`set | grep "^previous$x="`
var=${var#*=}
echo $var
aaa