>> This is for a NeXT (BSD4.3) system, BTW. > >NeXTs do not run 4.3BSD. And that is more than just a quibble over terminology, it's relevant to the question; 4.3BSD doesn't have "statfs()", but, apparently, the OS on NeXTs does. Had someone given the 4.3BSD answer, it wouldn't have been the best answer....