Mac system maintenance

mac-sys.sh

# Swap
sysctl vm.swapusage

# Many useful system information
sysctl -a
system_profiler
systemstats

# Wake and Sleep times on 10.9+
pmset -g log | grep "  Wake  "
pmset -g log | grep "Software Sleep "

# Change screenshot location and format
defaults write com.apple.screencapture location ~/Sites/_screenshots
defaults write com.apple.screencapture type pdf
killall SystemUIServer

# Reinitialize system without reinstall
# Boot into Single-User mode. Hold down Command-S on startup. And then type this:
# where <shortname> is the name of the existing user account.

mount -uw /
# This should be repeated for each user found in /Users
rm var/db/dslocal/nodes/Default/users/<shortname>.plist
rm -r /Users/<shortname>
# end repeat
rm var/db/.AppleSetupDone
reboot

# Mac bogomips:
sysctl -a | grep -i mwait.sub