At the command prompt, type cd and press Enter. At the command prompt, type pwd and press Enter. What is your current working directory? At the command prompt, type ls and press Enter.

$10$

At the command prompt, type ls $/$etc and press Enter. How does this output compare with what you saw in Step $9?$ Has your current directory changed? Verify your answer by typing pwd at the command prompt and press Enter. Notice that you were able to list the contents of another directory by giving the absolute name of it as an argument to the ls command without leaving the directory in which you are currently located.

$11$

At the command prompt, type ls $/$etc$/$skel and press Enter. Did you see a listing of any files? At the command prompt, type ls $-$a $/$etc$/$skel and press Enter. What is special about these files? What do the first two entries in the list $(.$ and $..)$ represent?

$12$

At the command prompt, type ls $-$aF $/$etc$/$skel and press Enter. Which file types are available in the $/$etc$/$skel directory?

$13$

At the command prompt, type ls $-$F $/$bin$/*$ and press Enter. What file types are present in the $/$bin directory?