can you plz post an answer to these quesions :
Write a program in c that prompts the user the name of a file and then counts and displays the number of bytes in a file. And create a duplicate fle with the word '.backup' appended to the filename. Please check whether the file was successfully opened, and display an error message if not.
Write a program in c to create a fle, open it, type in some characters and count the number of characters in a file.