Investigate the vi editor. Briefly answer questions 3 to 7 (You can type the answers of questions 3-15 in student-first-name_student-number lab2.docx): 3. Describe 8 different ways to move the cursor around in a file (e.g. h to move left one character). Describe 3 different ways to save a file. 5. If vi is in command mode, what do the following keys do? | Describe how you would have vi move the cursor to the first occurrence of KPU in a text file. 7. 1 How do you ensure that all ordinary files and directory created by you have rw-rw-r- and rwxrwxr-x as the default permission, respectively