Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!sun-barr!decwrl!sgi!vjs@rhyolite.wpd.sgi.com
From: vjs@rhyolite.wpd.sgi.com (Vernon Schryver)
Newsgroups: comp.sys.sgi
Subject: Re: Network backup suggesstions?
Message-ID: <47195@sgi.sgi.com>
Date: 29 Dec 89 20:15:09 GMT
References: <8912291517.AA02333@kailand.kai.com>
Sender: vjs@rhyolite.wpd.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 22

In article <8912291517.AA02333@kailand.kai.com>, pwolfe@kailand.kai.com (Patrick Wolfe) writes:
|...
| On BSD systems, if you extract files from a tar archive, you become the owner
|of all the new files (unless you are root).  On System V, AT&T tar restores the
|original owner (because you are allowed to give away files), in which case you
|may not have access to the new files (especially if the tar archive came on mag
|tape from another site).  GNU tar doesn't restore the original owner, unless
|you are root, so it acts just like BSD's tar from the user's standpoint.
| 
|         Patrick Wolfe	(pwolfe@kai.com, ...!kailand!pwolfe)
|         System Manager, Kuck & Associates


The -o arg to the IRIX tar has a similar effect.  It can be be particularly
useful when restoring a tape with files in directories that are not 777,
and you are not running as root, perhaps because you don't trust the
tape to not have absolute paths (and do not remember -R).


Vernon Schryver
Silicon Graphics
vjs@sgi.com