Re: [Nolug] enumerating tar backups

On Sunday 14 December 2003 1:22 pm, Petri Laihonen wrote:
> Hi all!
>
> Does anybody on the list happen to know command syntax for taking
> enumerated backups using tar, so that I would only have 3 days worth
> of backups available all the time.?
>
> I have not found a tar manual explaining the method of doing this.
> The option --backup=METHOD suggest along these lines, but I have not
> found any list of allowed methods or other parameters for creating
> this.
>
> Currently I have tar automatically create the date into the filename;
> however this would consume the available HD space within a week.
> (Including mirror for backups.)
>
> What I'm trying to do is to create 3 rotating backups,
> Day 1: Backup_01.tgz (eventually Days 4, 7, 10, etc....)
> Day 2: Backup_02.tgz (eventually Days 5, 8, 11, etc....)
> Day 3: Backup_03.tgz (eventually Days 6, 9, 12, etc....)
>

Well I just do tar czf backup-`date -I`.tar.gz /foo

To get rid of the old ones you can just do something like:

find /backupdir -type f -daystart -ctime +4 | xargs rm -f

-- 
Tim Kelley (entropy AT r00tserverz.net)
New Orleans, LA
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http://www.debian.org                                                           
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