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Full Discussion: AWK instead of Shell script
Top Forums UNIX for Advanced & Expert Users AWK instead of Shell script Post 302164640 by Lokesha on Tuesday 5th of February 2008 11:33:36 AM
Old 02-05-2008
MySQL Which code to use (for performance)

Thanks a lot,

Two questions here:

1) Radoulov - Your code is amazing, but what is the difference between the two option which you have given? I was not clear for "If the filenames contain no spaces". But the first option is working for my requirement.

2)bobbygsk - your code is also working for my requirement. But my concern here is the "performance". Since in real environment the datafiles will have "millions" of records speed up our script is very essential.

Hence please suggest me, which code is faster ?

Thanks again......Smilie

With Regards / Lokesha
 

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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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