Originally Posted by Domskis
Map the directory structure beginning with root(directories only , do not include files).
Given that you have been unfortunately deprived of the opportunity to do as much learning as you might out of that command, I am going top offer you a little alternative bit of learning.
'man -k' (or apropos) can give you an output showing which commands have a specified word in their summary. So, in this case, you might feel that 'man -k directory' or 'man -k directories' might give you something (for me, one of those works and the other doesn't; YMMV).
You might then find that you are getting too much output; you might then also think '...if only there was a way of finding which command summaries also contained the word 'list'...I'm sure that the right command would also use the word list...
man -k directories | grep -i list
With these two little tricks, you need never be without the appropriate command again.
notes to the interested student;
I will not answer the questions
how do I filter the 'man -k' output for more than one term
without some evidence of you having done at least some work, yourself. the answer to the first ought to be easy to obtain from the obvious place, and the second might take a little thought, but that's not a bad thing.