Mysqldump rotate backup Post: 302825783

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Top Forums Shell Programming and Scripting Mysqldump rotate backup Post 302825783 by timgolding on Tuesday 25th of June 2013 06:42:03 AM

06-25-2013

Registered User

Mysqldump rotate backup

I have a very simple script that uses a cron job to take a daily backup of our orders database.

Code:

echo "Dumping ORDERS database";
mysqldump -u root --password='mypassword' -h '1.1.1.1' --opt --compress ORDERS $tbl_names > /Volumes/Files_Backup_1/db_backups/orders.sql
echo "Copied database to external disk";

This will make a single backup on the external hard disk. My worry is if somehow the orders database was TRUNCATED, DROPPED then that evening the database backup would overwrite the empty version of the database to the backup and i would be in big trouble. What i need to know how to do it understand how i can use mysqldump to make a weeks worth of daily backup. Maybe a mon, tue, wed, thur, fri, sat, sun backup or something similar.

I could do

Code:

mysqldump ... > database_$(date +%Y_%m_%d).sql

Or something but then my backup disk would fill up. I need some way of deleting the older backups. Any ideas

timgolding

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backup_quit

BACKUP_QUIT(8)						       AFS Command Reference						    BACKUP_QUIT(8)

NAME

       backup_quit - Leaves interactive mode

SYNOPSIS

       quit [-help]

       q [-h]

DESCRIPTION

       The backup quit command exits interactive mode, returning the issuer to the regular shell prompt at which the backup or backup interactive
       command was issued to enter interactive mode. The command has no effect when issued outside interactive mode. Issuing the Ctrl-D command
       also exits interactive mode.

CAUTIONS

       To exit interactive mode, all jobs must be completed. Use the backup jobs command to list any jobs currently pending or executing, and the
       backup kill command to terminate them as necessary.

OPTIONS

       -help
	   Prints the online help for this command. All other valid options are ignored.

EXAMPLES

       The following command exits interactive mode:

	  backup> quit
	  %

PRIVILEGE REQUIRED

       None

SEE ALSO

       backup(8), backup_interactive(8), backup_jobs(8), backup_kill(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							    BACKUP_QUIT(8)