>De man shutdown: > > If shutdown is called with the -a argument (add this to the >invocation of shutdown in /etc/inittab), it checks to see if the file >/etc/shutdown.allow is present. It then compares the login names in >that file with the list of people that are logged in in a virtual >console (from /var/run/utmp). Only if one of those authorized users >or root is logged in, it will proceed.
Si mi ingl�s no me falla, ac� dice que solamente si uno de los usuarios esta loggeado, ejecuta el shutdown, pero no dice nada sobre *quien* ejecuta el shutdown
