I was looking for a tool like this for a long time since switching to Linux! And to make it "better" for those of us coming from Windows, you don't have to use it only from the Terminal, just add it to the Nemo file manager to start it via right click context menu selection (for details see this forum post https://forums.linuxmint.com/viewtopic.php?p=1615599#p1615599). Note: In case you think nothing happened once you right-clicked and chose "Print tree" - open your browser, it'll dump the results in there and you can print it. Thank you for this tool!!
Just added back into my new toolkit. Loved it in Mint v18, 19 and now in 20. Thanks!
Exactly what I've been looking for.