Date: Sun, 29 Sep 2002 22:41:12 +0000 (GMT) From: attila! <attila@hun.org> To: Julian Elischer <julian@elischer.org> Cc: Maxim Sobolev <sobomax@FreeBSD.ORG>, FreeBSD-CURRENT <current@FreeBSD.ORG> Subject: Re: broken: tar -l (--one-file-system) flag Message-ID: <20020929224112.QVYQ5944@hun.org> In-Reply-To: <Pine.BSF.4.21.0209291324310.74299-100000@InterJet.elischer.org> References: <20020929195153.Oy3a2352@hun.org>
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Yes, you are correct: the use of '.' rather than '*'
stops the recursion into separately mounted files
systems; thanx for the clarification!
However, the manual syntax for tar is anything but clear
--typical of the last 25+ years of *nix manuals' arcane
definitions.
The definition for find may be technically correct, but
the statement still leaves the opening to interpret the
statement as the 'starting file'; the fact the starting
file is a mount point is irrelevant. To me, "starting
file" is the file system "level" at the point of start
and anything mounted to that level would not be
included --but, in this case, I am wrong.
Both manual statements should be cleaned up and stated
in explicit terms. I've argued this point for 25 years
on many other fronts so I don't suppose it's going to
change...
out!
tar:
-l
--one-file-system Stay in local filesystem when creating
an archive (do not cross mount points).
find:
-x Prevent find from descending into directories that have
a device number different than that of the file from which
the descent began.
Sent: Sun, 29 Sep 2002 13:28:15 -0700 (PDT)
> The "one filesystem" option means "do not traverse a mount
> point when enumerating the tree given by an argument."
>
> You specified .??* *
>
> which includes source dev proc and drv as well as user and
> usr
>
> once it started enumeraing the subdirs from source it did
> not trwverse any mountpoints... just as you asked...
>
> find is also doing what you asked...
>
> try: tar -l -ycv -b 200 -f /source/2929.1842.root.tbz .
>
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