Aji-Dahaka

From FBSD_tips

"There was a facility that would execute a bunch of commands stored in a file; it was called runcom for "run commands", and the file began to be called "a runcom". rc in Unix is a fossil from that usage."

yeah, freebsd is the simple and proper solution, so things are really quite transparent. it's not some magical syntax or commands or anything, it's just variables in rc.conf. you can test its sintax by runnig . /etc/rc.conf