exec 5<$1

while read fname lname grade1 grade2 grade3 0<&5
do
echo "Name:" $fname  $lname
echo "Test 1:" $grade1
echo "Test 2:" $grade2
echo "Test 3:" $grade3

FinalGrade=($grade1 + $grade2 + $grade3)/3 | bc
echo $FinalGrade
echo "Student"  $fname $lname "has been processed."
done
exit 0