Yup, it's undocumented for some reason. I don't remember where I saw it used, bu...

		mzajc 3 months ago \| parent \| context \| favorite \| on: MIT Study Finds AI Use Reprograms the Brain, Leadi... Yup, it's undocumented for some reason. I don't remember where I saw it used, but as an example `[Service] ExecStart=/bin/echo $PATH` Will log the environment variable, while `[Service] ExecStart=:/bin/echo $PATH` Will log literal $PATH.