[tikhonj]

I just saw something similar on Twitter[1]: a script that takes a ZFS snapshot after every command. This lets you jump back to the state of the whole filesystem after every single command that you ran, giving you a sort of global history.

I figure you could adapt that to something a bit more restrained that you could use on an ongoing basis to have a "Local History"-style feature for your whole OS :).

[1]: https://twitter.com/grhmc/status/1362222849662935041

[leonim]

That looks amazing. I've used NetApp NFS filesystems that provided user level snapshots, where it automatically created snapshots of files. It wasn't after every command, but at regular intervals. You could access the files under `.snapshot` directory.

Searching now, it looks like this is part of NetApp ONTAP, and managed by a snapshot policy.