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Full Discussion: .tar and .tar.gz
Operating Systems AIX .tar and .tar.gz Post 302189812 by bakunin on Monday 28th of April 2008 02:40:06 AM
Old 04-28-2008
Quote:
Originally Posted by thye
I agreed GNU-tar is "against the cultural tradition of UNIX" but [...] By using GNU-tar it save us a lot of time,i believe.
I guess this is why the shell was invented in first place: to glue together all the little specialized tools which do only what they are intended to do, but that they do efficiently.

For the same reason one might need a tool that lists a directory and to translate its contents into chinese - that doesn't mean it would be a good idea to incorporate a translator for chinese into "ls".

If you buy tools (out in the real world, not on a computer) you'd usually buy screwdrivers, hammers, saws, etc.. These tools may serve only one purpose (a screwdriver for handling screws, a hammer for hammering, etc.), but ideally they serve this purpose well. If you try to buy a screwdriver which is a saw and a scissor and a hammer at the same time you'll end up with some sort-of "72-functions-swiss-army-knife", which does serve a lot of purposes all equally bad.

bakunin
 

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LEARN ABOUT DEBIAN

virt-tar-out

virt-tar-out(1) 					      Virtualization Support						   virt-tar-out(1)

NAME

       virt-tar-out - Pack a virtual machine disk image directory into a tarball.

SYNOPSIS

	virt-tar-out -a disk.img /dir files.tar

	virt-tar-out -d domain /dir files.tar

	virt-tar-out -d domain /dir - | gzip --best > files.tar.gz

DESCRIPTION

       "virt-tar-out" packs a virtual machine disk image directory into a tarball.

       The first parameter is the absolute path of the virtual machine directory.  The second parameter is the tar file to write.  Use "-" to
       write to standard output.

EXAMPLES

       Download the home directories from a guest:

	virt-tar-out -d MyGuest /home - | gzip --best > homes.tar.gz

JUST A SHELL SCRIPT WRAPPER AROUND GUESTFISH

       This command is just a simple shell script wrapper around the guestfish(1) "tar-out" command.  For anything more complex than a trivial
       copy, you are probably better off using guestfish directly.

OPTIONS

       Since the shell script just passes options straight to guestfish, read guestfish(1) to see the full list of options.

SEE ALSO

       guestfish(1), virt-cat(1), virt-copy-in(1), virt-copy-out(1), virt-edit(1), virt-tar-in(1), <http://libguestfs.org/>.

AUTHORS

       Richard W.M. Jones ("rjones at redhat dot com")

COPYRIGHT

       Copyright (C) 2011 Red Hat Inc.	<http://libguestfs.org/>

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

libguestfs-1.18.1						    2013-12-07							   virt-tar-out(1)
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