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Full Discussion: Backup files per Date String
Top Forums Shell Programming and Scripting Backup files per Date String Post 302188255 by drewrockshard on Wednesday 23rd of April 2008 03:56:16 AM
Old 04-23-2008
Error Backup files per Date String
Guys,

I've got a quick logic question. I'm pretty savvy when it comes to shell scripting, however, I'm at a loss when it comes to writing a simple shell script to backup only certain files out of the month. I have a directory, for example, /data/backups/websites/domain. In each "domain" directory, there are files that are named by the date of when they were created, for example:

Code:
deckerd-2008-04-11.tar.gz
deckerd-2008-04-12.tar.gz
deckerd-2008-04-13.tar.gz
deckerd-2008-04-14.tar.gz
deckerd-2008-04-15.tar.gz
deckerd-2008-04-16.tar.gz
deckerd-2008-04-17.tar.gz
deckerd-2008-04-18.tar.gz
deckerd-2008-04-19.tar.gz
deckerd-2008-04-20.tar.gz

The string is: domain-year-month-day.tar.gz

All I'm wanting to do is backup one file per week, and create a monthly backup (about 4 backups per month). Maybe I should change the string creation to a "day" and just backup "sun" (sunday) for that current month and then backup the backups - that might work. However, I am wanting to run a backup everyday, then at the end of the month, backup the 4 (sometimes just 3) backups of that month and create a monthly backup. The reason being that if I need a daily backup during the month I have it, but after that month is over, I should (maybe) only need a weekly backup.

This is how I want my system to be, and just needed some insight on how to actually get the individual (3 or 4 backups per month) to work. I already have it down how to create the backups and such, but taking what is currently being backed up (30 or 31 backups), and then at the end of the month, do the weekly backups (the part I'm wanting help with).

If anyone has any code snippets or just a few lines of "this could work" or "try this", I'd be very grateful.

Thanks in advanced,
Drew
 

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LEARN ABOUT CENTOS

bdb.db0

BDB.DB0(5)							AFS File Reference							BDB.DB0(5)

NAME

       bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log

DESCRIPTION

       The bdb.DB0 file contains the Backup Database, which records configuration information used by the AFS Backup System along with cross-
       indexed records of the tapes created and volumes dumped using the Backup System commands.

       The bdb.DBSYS1 file is a log file in which the Backup Server (buserver process) logs each database operation before performing it. When an
       operation is interrupted, the Backup Server replays the log to complete the operation.

       Both files are in binary format and reside in the /var/lib/openafs/db directory on each database server machine that runs the Backup
       Server.	When the Backup Server starts or restarts on a given machine, it establishes a connection with its peers and verifies that its
       copy of the bdb.DB0 file matches the copy on the other database server machines. If not, the Backup Servers use AFS's distributed database
       technology, Ubik, to distribute to all of the machines the copy of the database with the highest version number.

       Use the commands in the backup suite to administer the Backup Database. It is advisable to create a backup copy of the bdb.DB0 file on tape
       on a regular basis, using the UNIX tar command or another local disk backup utility.

SEE ALSO

       backup(8), backup_savedb(8), buserver(8)

COPYRIGHT

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26								BDB.DB0(5)
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