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Full Discussion: Check if a file type exists repeatedly
Top Forums Shell Programming and Scripting Check if a file type exists repeatedly Post 302999404 by mohtashims on Monday 19th of June 2017 08:32:54 PM
Old 06-19-2017
Hammer & Screwdriver Check if a file type exists repeatedly
Hi,

I have the below script that checks if the .tar file exists in my present directory. If so, extract it and then delete it except if the .tar filename is blent.tar

Code:
#!/bin/bash
while [ -f *.tar ] ; do
echo "TAR BALL EXISTS"

   for f in *.tar; do
   echo "File -> $f"
   tar -xvf $f
   rm -ir $f
   done

 done

The above extracts & deletes even the blent.tar which is something I do not want. My requirement is the keep doing untar of the <filename>.tar file till either no .tar file is left or this file [blent.tar] is left behind and the loop completes.

So, when the loop completes all the .tar files should be gone except the blent.tar.

Can you please suggest.
Last edited by mohtashims; 06-19-2017 at 10:00 PM..
This User Gave Thanks to mohtashims For This Post:
Don Cragun
 

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LEARN ABOUT SUSE

virt-tar-in

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

NAME

       virt-tar-in - Unpack a tarball into a virtual machine disk image.

SYNOPSIS

	virt-tar-in -a disk.img data.tar /destination

	virt-tar-in -d domain data.tar /destination

	zcat data.tar.gz | virt-tar-in -d domain - /destination

WARNING

       Using "virt-tar-in" on live virtual machines can be dangerous, potentially causing disk corruption.  The virtual machine must be shut down
       before you use this command.

DESCRIPTION

       "virt-tar-in" unpacks an uncompressed tarball into a virtual machine disk image or named libvirt domain.

       The first parameter is the tar file.  Use "-" to read the tar file from standard input.	The second parameter is the absolute target
       directory to unpack into.

EXAMPLES

       Upload a home directory to a guest:

	virt-tar-in -d MyGuest homes.tar /home

JUST A SHELL SCRIPT WRAPPER AROUND GUESTFISH

       This command is just a simple shell script wrapper around the guestfish(1) "tar-in" 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-make-fs(1), virt-tar-out(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-in(1)
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