Filter (3.2)

The goal of this exercise is to extend and provide a driver to the Filter pattern example contained in the CD ROM that comes with the textbook. The driver takes one argument from the command line. This argument is the name of the file. The driver counts the number of both words and characters in the file. A filter to count the number of characters (bytes) is included in the example. Add a similar filter to count the number of word. Hint: check the correctness of your programs using the unix "wc" utility.