runs the periodic daily, weekly and monthly tasks on your Mac even if the machine (a laptop, for example) spends much of its time asleep or switched-off. Anacron silently checks when you reboot and every sixty minutes while the computer is running to see if the various periodic scripts are overdue, and runs them if necessary. The advantage of Anacron over many other solutions to this issue is that it runs as a proper Unix background process, requires no user intervention, and uses the regular periodic scripts, including /etc/daily.local, /etc/weekly.local and /etc/monthly.local.
Note: This version of Anacron will run on Mac OS X 10.5 (Leopard) but it is not needed, as the Leopard launchd will run skipped jobs when the machine is next awake.
Version 3.3: Release notes were unavailable when this listing was updated.