You are given the task to create a somple script for an old computer equipment buying business to calculate and print a receipt for the customers. The business accepts only $5$ types of equipment: laptops, desktops, keyboards, mice, routers and they have a fixed payback prices of $$25,$ $$30,$ $$3,$ $$1\mathrm{.}50,$ $$20$ respectively. Write a bash script to ask the customer to enter how many of each item a customer wants to sell and then print a receipt.