Imagine you work on a file over extended periods of time, repeatedly adding changes and undoing them. Then, at some point you realize: Parts of the changes you undid two hours ago would be very helpful now. And yesterday you had already changed this particular bit, too, before you trashed that design. But of course, because you regularly save your files, old changes are lost. Many people have probably experienced a situation like this before. Wouldn’t it be great if you could recover old file versions without having to manually copy them at regular intervals?
This article is useful for understanding snapshots and subvolumes. Working thru the example by actually creating the test dir and making snapshots etc has been useful for this user.
sudo and sudo chown can be ignored with QV
