Answer by WinEunuuchs2Unix for Is there a general term for the items in a directory?

I like the term tree and indeed in Linux there is a command called tree that lists everything in the current directory and all directories below along with their files and sub-directories.

Here is an example to install and use the tree command. An example from the link:

Although screenshots of terminals are normally frowned upon, because copy and paste of pure text is favoured, I think the transgression in this instance will probably be forgiven by most readers.