15-20 please. All based on Linux Systems

Given the following directory structure, answer questions 15-20 bin ete home us temp temp2 15. If you are currently in the direetory marst, write a relative path to dukeg. 16. If you are currently in the directory b, write an absolute path to etc. 17. If you are currently in the directory a, where does .J.d. take you? Assume for questions 18-21 that you have proper permission to accomplish the tasks. 18. Write a command to rename the file in /home/foxr called foo.txt to for.txt. 19. Write a command to move all files in /home/foxr/temp to /home/foxr/temp2/a. 20. Write a command to copy everything underneath foxr's temp2 directory including its subdirectories and their contents to dukeg's home directory