7- Suppose that you are editing a file that contains the following paragraph and the cursor is on the second tilde (~): The vim editor has a command, tilde (~), that changes lowercase letters to uppercase, and vice versa. The ~ command works with a Unit of Measure or a Repeat Factor, so you can change the case of more than one character at a time. How can you Move the cursor to the end of the paragraph? Move the cursor to the beginning of the word Unit? Change the word character to letter? 8- Assume that your version of vim does not support multiple Undo commands. If you delete a line of text, then delete a second line, and then a third line, which commands would you use to recover the first two lines that you deleted? 9- If /home/zach/draft and /home/max/letter are links to the same file and the following sequence of events occurs, what will be the date in the opening of the letter? a. Max gives the command vim letter. b. Zach gives the command vim draft. c. Zach changes the date in the opening of the letter to January 31, writes the file, and exits from vim. d. Max changes the date to February 1, writes the file, and exits from vim.