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).
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.
The script exits with status code 0 if everything went well, and nonzero if it encountered trouble.
bf_tar ~/.bogofilter > outfile.tar
Writes a standard .tar file containing the essential files
		from ~/.bogofilter to
		outfile.tar.
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.
bf_tar `pwd`/mydirectory
		> outfile.tar
Prepend $(pwd)/ or
		`pwd`/ if you want to specify an
		absolute path instead of a relative path.
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.