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From: bronsard@m.cs.uiuc.edu (Francois Bronsard)
Newsgroups: comp.unix.questions
Subject: Unix System V link
Message-ID: <1990Jan16.204355.13792@ux1.cso.uiuc.edu>
Date: 16 Jan 90 20:43:55 GMT
Sender: paul@ux1.cso.uiuc.edu (Paul Pomes)
Reply-To: bronsard@m.cs.uiuc.edu.UUCP (Francois Bronsard)
Organization: University of Illinois, Dept. of Comp. Science, Urbana
Lines: 20

I have a question about the dangers of having two hard links to the
same directory in Unix System V.  Basically, I cannot do a symbolic
link (because my version of the system is too old), so I was told that
I could use the system call link() to create a hard link to a directory.
However, I was warned that such a thing is dangerous since it might
confuse the file system (specifically, the programs find and
fsck/icheck/ncheck).  Now my question is : "How dangerous is it really?"
In particular, all I want to do create the following structure :
                    $home
                    / .. \ ...
                   /      \
                FILES      \   
                  \         \
                   \_______files
                            ...

 (The link between FILES and files is the new link that I want to have).
So what problems can such a link cause to the files systems?

Francois