Useful symbols when writing directory structure diagrams

Let’s write it for testing

root/
 ├ bin/
 ├ etc/
 ├ usr/
 |  └ local/
 |      └ bin/
 └ lib/

In conclusion, as long as there are at least the following two symbols, it does not bother me to a certain extend when writing DFL.

├
└

Somehow, I want to write in markdown form for DFL.