Launch Agents/Daemons

Launch Agents (User Level) - Background User Process

$ cd /System/Library/LaunchAgents/
$ cd /Library/LaunchAgents/

Launch Deamons (System Level) - Background System Process

cd /System/Library/LaunchDaemons/
$ cd /Library/LaunchDaemons/

This is basically like a cron jobs.Best examples of Launch Daemons are following plist files:
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