systemd systemd-ac-power 1 systemd-ac-power Report whether we are connected to an external power source systemd-ac-power OPTIONS systemd-ac-power may be used to check whether the system is running on AC power or not. By default it will simply return success (if we can detect that we are running on AC power) or failure, with no output. This can be useful for example to debug ConditionACPower= (see systemd.unit5). The following options are understood: -v --verbose Show result as text instead of just returning success or failure. On success (running on AC power), 0 is returned, a non-zero failure code otherwise. systemd1