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Full Discussion: Compress multiple files at one go
Top Forums UNIX for Dummies Questions & Answers Compress multiple files at one go Post 302300187 by kedar.mehta on Monday 23rd of March 2009 12:28:55 PM
Old 03-23-2009
Tools Compress multiple files at one go
I want to compress all the files which are three years older ..I have thousands of files...

1) This doesnt work
find ./ -type f -mtime +1176 -print | xargs -n1 -i tar -cvf {}
Errror
tar: Missing filenames

Probably because of -
find ./ -type f -mtime -1 -print returns -
"
./temp.txt"
First line is empty, may be that's the problem.

To experiment, i just tried -
"find ./ | grep "txt" | xargs -n1 -i tar -cvf {}"

"find ./ | grep "txt" |" returns no null characters. Still it's NOT working !!

2)
tar -cvf find ./ -type f -mtime +1176 -print

tar -cvf `find ./ -type f -mtime -1`

none of these working.

I get output as -
"a .// 0K
a . 0K
a .//temp.txt 0K
tar: .//find same as archive file
tar: -type: No such file or directory
tar: f: No such file or directory
tar: -mtime: No such file or directory
tar: -1: No such file or directory
tar: -print: No such file or directory"

3) The only thing working is -
"find ./ -type f -mtime +1176 | gzip -c > temp.gz"

It creates temp.gz but I am not sure -- WHETHER THIS WILL WORK WITH THOUSANDS OF FILES OR NOT?

one more problem is i cant unzip the files -
" gzip -dc temp.gz"
Returns me-
"./temp.gz
./find
./temp
./temp2.txt"

but no unzipping happens ! I am stuck !

Envrionment details -
SunOS 5.8
 

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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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