[lug] rsync to explore file system differences?

[Quentin Hartman]

You could make a multi-pass system. Have it skip /dev and handle that
independently. Really, do you need to do anything with it? It's not really
a fs, so I wouldn't think it would be part of your image anyway. In any
case, if you do need to worry about it, it's small enough to tackle alone.
As far as hard links are concerned, a second step with find just looking
for files with multiple links would pull out all your hard links relatively
quickly. This page illustrates a number of approached to dealing with links
that might be useful to you:
http://linuxcommando.blogspot.com/2008/09/how-to-find-and-delete-all-hard-links.html

In any case, that's how I'd approach it.

QH

On Wed, Feb 4, 2015 at 7:11 PM, <stimits at comcast.net> wrote:

> ...
> > I would write a shell script around "diff --brief --text --recursive
> --new-file "$OLD_FS" "$NEW_FS""
> >
> > Save that output into a variable then pipe into a "while read" loop, and
> you can do different things with each line depending on what the status is.
>  ...
>
> This would be perfect if diff understood symbolic links and device special
> files (in terms of hard files the diff output is nice...although I still
> need time stamps equal as well). I would still need a front end that
> understands hard/soft link, device special files, permissions, and time
> stamps. I'm not a system administrator so I don't pay a lot of attention to
> special backup and restore schemes, but it almost seems like I need a
> non-rsync backup and restore modified to not really backup and not really
> restore. If I invent something myself it won't be available on a "normal"
> desktop linux PC. I keep going back to rsync to figure out a way with that,
> but it's one of those cases where it isn't really sane to keep trying the
> same thing and hope the result changes.
>
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