Session III I. Log into the system. 2. Create a backup directory in your home directory called backups. 3. Use the find command to find the pathnames of all of the files (hw4, hw4.bk,h and hw4SL) that you created in Session II. All of them should be found using onlu find command. The command must also copy all of them to the backups di 4. Check the number of links and inode number of hw4, hw4.bk, hw3HL, and hw4SL. Make note of the results. 5. Delete the original hw4 file without moving from your home directory Check the existence of hw4, hw4.bk, hw4HL, and hw4SL. 7. Check the contents of hw4, hw4.bk, hw4HL, and hw4SL 8. Restore the file hw4 by making a copy of hw4.bk. 9. You may have noticed that your soft link (hw4SL) contains garbage. Delete this file. 10. Make a new soft link to hw4 and store it as hw4SL under the same directory as it was 11. List recursively all of your files and directories to confirm all operations. 13. Log out of the system. Session IV 1. Log into the system. 2. Use wildcards to display all of the files you have created under the Hws directory without moving from your home directory 3. Rename hw4.bk to hw4.bak. 4. Create a short friendly letter, called friend.1, using vi and store it under the friendly directory 5. Create a short formal letter, called formal.1, using vi and store it under the formal directory. Give a title to formal.1 letter 6. Copy the file formal.1 and call the new copy formal.2. 7. Change only the title of formal.2 (using vi) and store it. 8. Using wildcards, print the contents of formal.1 and formal.2. 9. Make a directory called bustetters under your home directory 10. Move the formal directory (with all of its contents) under the busLetter directory 11. Make a recursive list of your directory structure. 12. Draw the new directory structure on paper. 13. Log out of the system