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Top Forums Shell Programming and Scripting Compress a tar file to smaller size Post 302887593 by Shaibal_bp on Sunday 9th of February 2014 08:58:22 AM
Old 02-09-2014
Question [Solved] Compress a tar file to smaller size

I have a tar file with name DTT012_GP_20140207.tar and many more with different names of different sizes ranging from 1GB to 4GB.
Now my requirement is to extract/not extract these files and then divide it into various parts of size 500MB and save it with different names and then compress it(zip/tar).
(If 1GB tar file, it should divide into 2 500MB,
If 1.6GB file, it should divide into 2 500MB and the remanning 100MB into another)

I have tried this
Code:
split -b 500000000 DTT012_GP_20140207.tar /tmp/newdata/DTT012_GP_20140207_part.tar

The output files generated come with name DTT012_GP_20140207_part.tara , DTT012_GP_20140207_part.tarb , DTT012_GP_20140207_part.tarc

Please let me know if I am doing it right and also how do i name it in increasing order as part1,part2,part3??

Last edited by bartus11; 02-09-2014 at 10:05 AM.. Reason: Please use [code][/code] tags.
 

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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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