Problem
1. How will you copy a directory structure bar1 to bar2? Does it make any difference if bar2 exists?
2. Assuming that bar is a directory, explain what the command rm -rf bar does. How is the command different from rmdir bar?
3. How do you print the file /etc/passwd on the printer named laser on System V
(i) to generate three copies,
(ii) and know that the file has been printed?