https://www.google.com/imgres?imgurl=https%3A%2F%2Fqph.fs.quoracdn.net%2Fmain-qimg-cfb886f0f85d566dee56b0464aeb33e5&imgrefurl=https%3A%2F%2Fwww.quora.com%2FWhat-are-some-little-known-tricks-or-hacks-for-Ubuntu&docid=8BGhZOUnT8P6kM&tbnid=k4RzpYVh5B2AXM%3A&vet=12ahUKEwjprc3cjY_dAhUIIMAKHeoHC5c4yAEQMygIMAh6BAgBEAk..i&w=602&h=340&bih=576&biw=1366&q=decentric.org&ved=2ahUKEwjprc3cjY_dAhUIIMAKHeoHC5c4yAEQMygIMAh6BAgBEAk&iact=mrc&uact=8

and what else?...'some little known tricks'....go figure:

https://www.quora.com/What-are-some-little-known-tricks-or-hacks-for-Ubuntu