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# launchctl
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# A command-line interface to Apple's launchd manager
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#
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# for launch daemons (system-wide services) and launch agents (per-user
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# programs). launchd loads XML-based *.plist files placed in the appropriate
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# locations, and runs the corresponding commands according to their defined
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# schedule.
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# Activate user-specific agent to load into launchd whenever the user logs in.
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launchctl load ~/Library/LaunchAgents/my_script.plist
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# Activate an agent which requires root privileges to run and/or should be
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# loaded whenever any user logs in (note the absence of ~ in the path).
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sudo launchctl load /Library/LaunchAgents/root_script.plist
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# Activate a system-wide daemon to be loaded whenever the system boots up, -
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# even if no user logs in.
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sudo launchctl load /Library/LaunchDaemons/system_daemon.plist
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# Show all loaded agents/daemons, with the PID if the process they specify is
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# currently running, and the exit code returned the last time they ran.
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launchctl list
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# Unload a currently-loaded agent to, for example, make changes. The plist file
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# is automatically loaded into launchd after a reboot and/or logging in.
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launchctl unload ~/Library/LaunchAgents/my_script.plist
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# Manually run a known (loaded) agent/daemon, even if it isn’t the right time
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# This command uses the agent's label, rather than the filename.
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launchctl start my_script
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# Manually kill the process associated with a known agent/daemon, if running.
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launchctl stop my_script
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