This will execute basic calculator operation. echo -n "Enter the First Value " read no1 echo -n "Enter the Second Value " read no2 echo " *** Choice *** " echo "1. Addition" echo "2. Subtraction" echo "3. Multiplication" echo "4. Division" echo "5. Modulo" echo -n "Enter Choice: " read choice case $choice in 1) echo -n $no1 "+" $no2 "is " result=`expr $no1 + $no2` echo $result;; 2) echo -n $no1 "-" $no2 "is " result=`expr $no1 - $no2` echo $result;; 3) echo -n $no1 "*" $no2 "is " result=$((no1 * no2)) echo $result;; 4) echo -n $no1…