Who redirects to a file?

[David Ellis 16-Oct-1990 1136]

Given a specific file, how can the following be done in csh:

(a) Determine whether there exists a process whose output is currently 
redirected into the file.

(b) Same as (a), but the file is NFS-mounted with its original on another 
machine.

(c) As in (b), but you want to test for processes on other machines that
may be redirecting their output to your file via a NFS pointer on their
machine.

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David  J  Ellis
Digital Equipment Corporation, Secure Systems Group 
Mailstop BXB1-1/D03 
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