麦克巴克
为方便起见，列出，控制和安排有效的APFS快照。
# let's take space efficient APFS snapshots every hour
# knowing they get cleaned up if necessary
% macbac schedule hourly
Installing daemon config to /Users/user/Library/LaunchAgents/com.hazcod.macbac.plist
Loading config to enable schedule...
Scheduled hourly snapshots !
# show our current snapshots
% macbac list
/Volumes/SSD
> 2020/12/30 10:23
> 2020/12/30 11:04
