Review: CountLetters The CountLetters application is limited to counting letters in a single word. Modify the CountLetters
application to count the letters in an entire phrase, which contains spaces. Care must be taken to ignore the
spaces and any other nonalphabetic character found in the phrase. Be sure to change comments and vari-
able names appropriately so that the reader of the application code understands that the letters in a phrase
are counted.

When you type the pwd command, you notice that your current location on the linux filesystem is the /usr/local directory. answer the following questions, assuming that your current directory is /usr/local for each question. a. which command could you use to change to the /usr directory using an absolute pathname? b. which command could you use to change to the /usr directory using a relative pathname? c. which command could you use to change to the /usr/local/share/info directory using an absolute pathname? d. which command could you use to change to the /usr/local/share/info directory using a relative pathname? e. which command could you use to change to the /etc directory using an absolute pathname? f. which command could you use to change to the /etc directory using a relative pathname?