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Full Discussion: tar command to explore multiple layers of tar and tar.gz files
Top Forums Shell Programming and Scripting tar command to explore multiple layers of tar and tar.gz files Post 302538331 by bashnewbee on Tuesday 12th of July 2011 03:10:28 PM
Old 07-12-2011
tar command to explore multiple layers of tar and tar.gz files
Hi all,

I have a tar file and inside that tar file is a folder with additional tar.gz files. What I want to do is look inside the first tar file and then find the second tar file I'm looking for, look inside that tar.gz file to find a certain directory. I'm encountering issues by trying to look inside two tar files are once.

The tar file is structured as follows:
Code:
List_of_tests.tar -> These_are_the_tests folder -> several tar.gz files -> a series of folders which I want to search

So far for code I have:

Code:
PATH=`tar tf List_of_tests.tar | grep generaltest | xargs tar tf  | grep test42`

The first two commands (tar tf and grep) work correctly however I am unable to get the third command to run correctly. It tells me the directory does not exist and I believe this is because tar tf only lists what is inside that directory and therefore after executing the file the first time I lose List_of_tests.tar from the path and the path simply starts with These_are_the_tests/....

Any ideas?

Thanks!
Bashnewbee
Last edited by bashnewbee; 07-12-2011 at 04:21 PM..
 

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LEARN ABOUT CENTOS

bf_tar

BF_TAR(1)						    Bogofilter Reference Manual 						 BF_TAR(1)

NAME

       bf_tar - shell script to write a tar file of a bogofilter directory to stdout

SYNOPSIS

       bf_tar [-r] [-R] bogofilter_directory

DESCRIPTION

       bf_tar bundles a bogofilter working directory in tar format and copies it to standard output (your console, or where you redirect it, see
       EXAMPLES below).

OPTIONS

       The -r option causes bf_tar to remove inactive log files after the archive has been written successfully. The default is to leave log
       files.

       The -R option causes bf_tar to remove inactive log files before the archive is written. This may reduce chances that the resulting archive
       is recoverable should it become damaged. The archive may be smaller though. The default is to leave log files.

EXIT STATUS

       The script exits with status code 0 if everything went well, and nonzero if it encountered trouble.

EXAMPLES

       o   bf_tar ~/.bogofilter > outfile.tar

	   Writes a standard .tar file containing the essential files from ~/.bogofilter to outfile.tar.

       o   bf_tar ~/.bogofilter | gzip -9 -c > outfile.tar.gz

	   Writes a gzipped .tar.gz file containing the essential files from ~/.bogofilter to outfile.tar.gz.

       o   bf_tar `pwd`/mydirectory > outfile.tar

	   Prepend $(pwd)/ or `pwd`/ if you want to specify an absolute path instead of a relative path.

NOTES

       This script is meant for use with Berkeley DB based bogofilter versions.

       This script requires a SUSv2 compliant pax utility.

       This script expects a SUSv2 compliant shell. Solaris systems should have the SUNWxcu4 package installed (when bogofilter is configured) so
       that /usr/xpg4/bin/sh can be used.

AUTHORS

       Matthias Andree

Bogofilter							    10/22/2012								 BF_TAR(1)
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