How to Get Insurance: A Step-by-Step Guide for Beginners

 

4. Calculator Shell Script

echo "Enter two numbers:"
read a b

echo "1.Add 2.Subtract 3.Multiply 4.Divide"
read ch

case $ch in
1) echo "Sum = $((a+b))";;
2) echo "Difference = $((a-b))";;
3) echo "Product = $((a*b))";;
4) echo "Division = $((a/b))";;
*) echo "Invalid choice";;
esac

---

✅ 5. Student Marksheet Script

echo "Enter marks of 3 subjects:"
read m1 m2 m3

total=$((m1+m2+m3))
percentage=$((total/3))

echo "Total = $total"
echo "Percentage = $percentage"

if [ $percentage -ge 60 ]
then
  echo "Class: First"
elif [ $percentage -ge 50 ]
then
  echo "Class: Second"
else
  echo "Class: Pass"
fi

---

✅ 6. Palindrome Number Script

echo "Enter number:"
read num

rev=0
temp=$num

while [ $num -gt 0 ]
do
  rem=$((num%10))
  rev=$((rev*10+rem))
  num=$((num/10))
done

if [ $temp -eq $rev ]
then
  echo "Palindrome"
else
  echo "Not Palindrome"
fi

---

✅ 7. Factorial Script

echo "Enter number:"
read n

fact=1

for ((i=1;i<=n;i++))
do
  fact=$((fact*i))
done

echo "Factorial = $fact"

---

✅ 8. Fibonacci Series Script

echo "Enter n:"
read n

a=0
b=1

echo "Fibonacci series:"
for ((i=1;i<=n;i++))
do
  echo -n "$b "
  fn=$((a+b))
  a=$b
  b=$fn
done

---

✅ 9. Menu Driven Shell Script

echo "1. Calendar"
echo "2. Date and Time"
echo "3. Logged in users"
echo "4. Display name at position"
echo "5. Terminal number"

read ch

case $ch in
1) cal ;;
2) date ;;
3) who ;;
4) tput cup 10 20
   echo "YourName" ;;
5) tty ;;
*) echo "Invalid choice" ;;
esac

---

✅ 10. Date, Time & Welcome Script

hour=$(date +%I)
ampm=$(date +%p)

echo "Current Time: $(date +"%I:%M:%S %p")"
echo "Date: $(date)"

if [ $hour -lt 12 ]
then
  echo "Good Morning"
elif [ $hour -lt 18 ]
then
  echo "Good Afternoon"
else
  echo "Good Evening"
fi