Script name: mygrade
#March 28, 2017

echo "Enter Assignment Mark (1 to 40): ";
read assMark
echo "Enter Test1 mark (0 to 15): ";
read test1Mark
echo "Enter Test2 mark (0 to 15): ";
read test2Mark
echo "Enter Final Exam mark (0 to 30): ";
read finalExamMark

finalGrade=$((assMark+test1Mark+test2Mark+finalExamMark))


if [ "$finalGrade" -ge 90 ] && [ "$finalGrade" -le 100 ]; then
	echo "Your final grade is A+"
elif [ "$finalGrade" -ge 85 ] && [ "$finalGrade" -le 89 ]; then
	echo "Your final grade is A"
elif [ "$finalGrade" -ge 80 ] && [ "$finalGrade" -le 84 ]; then
	echo "Your final grade is A-"
elif [ "$finalGrade" -ge 77 ] && [ "$finalGrade" -le 79 ]; then
	echo "Your final grade is B+"
elif [ "$finalGrade" -ge 73 ] && [ "$finalGrade" -le 76 ]; then
	echo "Your final grade is B"
elif [ "$finalGrade" -ge 70 ] && [ "$finalGrade" -le 72 ]; then
	echo "Your final grade is B-"
elif [ "$finalGrade" -ge 67 ] && [ "$finalGrade" -le 69 ]; then
	echo "Your final grade is C+"
elif [ "$finalGrade" -ge 63 ] && [ "$finalGrade" -le 66 ]; then
	echo "Your final grade is C"
elif [ "$finalGrade" -ge 60 ] && [ "$finalGrade" -le 62 ]; then
	echo "Your final grade is C-"
elif [ "$finalGrade" -ge 57 ] && [ "$finalGrade" -le 59 ]; then
	echo "Your final grade is D+"
elif [ "$finalGrade" -ge 53 ] && [ "$finalGrade" -le 56 ]; then
	echo "Your final grade is D"
elif [ "$finalGrade" -ge 50 ] && [ "$finalGrade" -le 52 ]; then
	echo "Your final grade is D-"
elif [ "$finalGrade" -ge 0 ] && [ "$finalGrade" -le 49 ]; then
	echo "Your final grade is F"
fi