Date: Sun, 5 Dec 1999 13:28:50 -0500 (EST) From: "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com> To: cs@cheasy.de Cc: FreeBSD-Questions@FreeBSD.ORG Subject: Re: How to delete backups N days old? Message-ID: <199912051828.NAA48924@cc942873-a.ewndsr1.nj.home.com> In-Reply-To: <14410.40791.863940.609567@mero-08a.merowingia.uni-kl.de> from Christoph Sold at "Dec 5, 1999 06:22:31 pm"
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Christoph Sold wrote,
[Charset iso-8859-1 unsupported, filtering to ASCII...]
> I do regular backups of a subtree into some tarballs on another
> volume. The tarballs are named including the date
> (e.g. bup-19991205.tar.bz2). Those files accumulate over a period of
> several days, then get written out to tape. After that, I want to
> delete backup tarballs older than, say, one week.
>
> Looking for an option in find, I went up blank. (Yes, you may specify
> files older than another given file, but that_s not what is needed
> here. I want to create a script automating the process, leaving a
> couple of newer tarballs online.)
>
> Any ideas really appreciated
#!/bin/sh
#
# Usage: bkupclean [days]
#
# Clean up backup older than 'days' or default to a week (7 days).
# BACKUPDIR is the location of the backups and needs to be set.
cd $BACKUPDIR
if [ $1 ]; then
if [ $1 -lt 1 ]; then
echo "$0: Bad number of days. Must be greater than 0." >&2
exit 1
else
DAYS=$1
fi
else
DAYS=7
fi
ERASEFROM=`date -v-"$DAYS"d +%Y%m%d`
ERASEFROM=bup-"$ERASEFROM".tar.bz2
for BUP in bup*; do
if expr $BUP '<=' $ERASEFROM; then
rm $BUP
fi
done
exit 0
--
Crist J. Clark cjclark@home.com
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