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Top Forums Shell Programming and Scripting Converting Huge Archive into smaller ones Post 302247384 by Legend986 on Wednesday 15th of October 2008 03:08:14 PM
Old 10-15-2008
Converting Huge Archive into smaller ones

I have a 13G gz archive... The problem is that when I expand it, it goes to 300G and I don't have so much of hdd space. The file is a one huge file: rrc.tar.gz. What I want to do is to extract the archive but at each step gzip the resulting file.

So, if

Code:
gunzip -c rrc00.tar.gz | tar -xvf -

gives me an uncompressed directory, I want each of the files to be gzipped as and when they are extracted. So for example, if the resulting directory is something like

2007/fileA.txt
2007/fileB.txt

I want fileA.txt to be gzipped into fileA.txt.gz before it goes and extracts fileB.txt. Is there a way that this is possible?
 

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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 03/15/2010 BF_TAR(1)
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