增量备份脚本

增量备份的脚本 主要是根据时间点来检测

#!/bin/bash
SRCDIR="/home"
BAKDIR="/var/www/backup"
TODAY=`date +%Y%m%d%H%M`
FILELIST="/tmp/file.list"
TIMEKEY="/tmp/time.key"

[ ! -f $TIMEKEY ] && touch $TIMEKEY
[ -f $TIMEKEY ] && touch $TIMEKEY.tmp
cd $SRCDIR
  [ $? -eq 0 ] && find ./ -newer $TIMEKEY ! -type d > $FILELIST.tmp
mkdir -p $BAKDIR/$TODAY
tar -T $FILELIST.tmp -c | tar -x -C $BAKDIR/$TODAY
mv $TIMEKEY.tmp $TIMEKEY