Mountain Lion and Lion
sudo killall -HUP mDNSResponder
Snow Leopard
sudo dscacheutil -flushcache
alpha01:~ tony$ vim ~/.bash_profile
export CLICOLOR=1 export LSCOLORS=GxFxCxDxBxegedabagaced
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist