[TUHS] The evolution of Unix facilities and architecture

[Noel Chiappa]

    > From: Warner Losh

    > There's a dcheck.c in the TUHS v7 sources. How's that related?

That was one of the earlier tools - not sure how far back it goes, but it's in
V6, but not V5. It consistency checks the directory tree. Another tool, 'icheck',
consistency checks file blocks and the free list.

	Noel