Working while sleeping - using "at" command on osx

osx_at_command_sleep_off.md

*Good for yosemite or snow leopard

1. Edit the /System/Library/LaunchDaemons/com.apple.atrun.plist, change the disabled child node from true -> false.

2. Unload the current /System/Library/LaunchDaemons/com.apple.atrun.plist with:

   sudo launchctl unload -F /System/Library/LaunchDaemons/com.apple.atrun.plist

Then load the edited version

sudo launchctl load -F /System/Library/LaunchDaemons/com.apple.atrun.plist

3. Test that it works with:

   echo blah | at now+1

4. In case the echo fails for a different reason, you should be able to at least see the queue get cleared with:

   atq

5. Check your current sleep timeout

   sudo systemsetup -getcomputersleep

6. Turn off system sleep

   sudo systemsetup -setcomputersleep Never

7. Schedule your at command e.g.

   at 4:30am tomorrow cd ~/myapps/autocatinator script/begin_cat_feeding script/unlock_cat_door ^D

8. If using a laptop ensure you're plugged into power :)