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Full Discussion: Need command/script to archive files older than
Top Forums Shell Programming and Scripting Need command/script to archive files older than Post 303009456 by jim mcnamara on Thursday 14th of December 2017 02:58:19 PM
Old 12-14-2017
If you do not compress the tar file it makes no sense to tar at all. A tar archive can be slightly larger than the original file. One single file per tar is pointless as well. Just compress the file. It becomes unreadable.

What you want to do, minus some details:
Code:
# find files in select directories:
# you need a file with directory names, call it dirnames, create one
while read dir
do
      # -mtime  180  finds files older than 180 days, change it to what you want in days 
      # the name excludes already zipped files.
      find "$dir" -type f  -mtime +180 ! -name '*.gz' -exec gzip {} \;    
done

If you absolutely have to have a single file in tar format archive change the above -exec command to get whatever.
 

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LEARN ABOUT DEBIAN

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							    03/15/2010								 BF_TAR(1)
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