Open files by users?

[Michael Bruck]

How can one tell which users have what files open?  I essentially need
to see if a particular file is open and by whom.  On VMS (no flames
please), a SHOW DEVICES/FILES does this.  Other than writing a program
that crawls around the insides of the i-node tables and file buffer
tables, I can't come up with any way of doing this.  Any ideas?

	--Michael Bruck
	  Intel CAD, Santa Clara, CA
	  ...{decwrl,amdcad,hplabs}!intelca!mipos3!mike