echo "Enter the five subject marks for the student"
read m1 m2 m3 m4 m5
sum1=`expr $m1 + $m2 + $m3 + $m4 + $m5`
echo "Sum of 5 subjects are: " $sum1
per=`expr $sum1 / 5`
echo " Percentage: " $per
if [ $per -ge 60 ]
then
echo "You get Distinction”
elif [ $per -ge 50 ]
then
echo “You get First class”
elif [ $per -ge  40 ]
then
echo "You get Second class"
else
     echo "You get Fail"
fi


OUTPUT
**********
     [04mca58@LINTEL 04mca58]$ sh filemenu.sh
     Enter the five subject marks for the student
     45 
     35
     30
     40
     42    
     Sum of 5 subjects are: 192
     Percentage : 76.8
You get Distinction