Exercise 2 Remove punctuation In this stage, we remove punctuation characters from a file or text. You must write a shell-script named strip chars that can be called in either of two ways: strip chars filename, which reads the file named filename: or stripchars, which reads from standard-input. We define punctuation as any of the characters: Ollt) or For example, if the input was: Twaddle you say? I'll have you know there's a deep truth in what I said Then the output from stripchars would be the lines