Q.3. (35 points) Write an awk script to perform the following operations. Products in a supermarket are given in a file. Find and print the following: For each product, how many of that product is sold. At the end, the total number of all products sold and the total number of products sold whose name start with a, b or c. Ex: products.txt apple 5 2 20 1 6 7 orange 32 4 banana 6 4 2 bread 4 1 8 3 output apple:41 orange 36 banana 12 bread 16 Total number of products: 105 Products start with a,b,c: 69