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Full Discussion: Comparing two tar files on AIX
Operating Systems AIX Comparing two tar files on AIX Post 302927651 by bakunin on Thursday 4th of December 2014 10:05:20 AM
Old 12-04-2014
Quote:
Originally Posted by RudiC
Running tar tvzf tarfile.tgz will give you date and size of the respective files; at least a first evidence for file changes.
Yes, but only if you use GNU-tar, because the standard AIX-tar doesn't understand the "-z" (decompress from zip-compressed format) option. I suggest to use

Code:
gzip -cd /path/to.tar.gz | tar -tf -

instead which will work with GNU-tar and any standard-tar alike.

Quote:
Originally Posted by filosophizer
thanks RudiC , but the data is composed of 270 GB so imagine the number of files and directories.
The "-t" option RudiC suggested only lists the names and sizes of the files, not the files themselves. The output depends on how many files there are but typical database-files are a few and big. Furthermore, you do not need to compare the different outputs by hand, use the "diff" tool as suggested by zaxxon.

Another option would be to use "find" to get the creation time, see "man find", seaching for "ctime".

I hope this helps.

bakunin
 

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LEARN ABOUT CENTOS

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) 2011-2012 Red Hat Inc.

LICENSE

       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.

BUGS

       To get a list of bugs against libguestfs, use this link:
       https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools

       To report a new bug against libguestfs, use this link:
       https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools

       When reporting a bug, please supply:

       o   The version of libguestfs.

       o   Where you got libguestfs (eg. which Linux distro, compiled from source, etc)

       o   Describe the bug accurately and give a way to reproduce it.

       o   Run libguestfs-test-tool(1) and paste the complete, unedited output into the bug report.

libguestfs-1.22.6						    2013-08-24							   virt-tar-out(1)
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