Super simple with zfs. take a snapshot. run your command. you won't see what it did to anything non-zfs like temp filesystems (/var/run and so on) though. I wi

Super simple with zfs. take a snapshot. run your command. you won't see what it did to anything non-zfs like temp filesystems (/var/run and so on) though. I wish this were possible on macOS. You can see all file activity with dtrace but that's not nearly as easy as snapshotting.