mysql增量备份代码

mysql增量备份代码

 

#!/bin/sh
#
# mysql binlog backup script
#
/usr/bin/mysqladmin flush-logs
DATADIR=/data0/mysql/3306/binlog
BAKDIR=/tmp/mysqlbackup

cd $DATADIR
FILELIST=`cat binlog.index`
##计算行数,也就是文件数
COUNTER=0
for file in $FILELIST
do
COUNTER=`expr $COUNTER + 1 `
done
NextNum=0
for file in  $FILELIST
do
base=`basename $file`
NextNum=`expr $NextNum + 1`
if [ $NextNum -eq $COUNTER ]
then
echo "skip lastest"
else
dest=$BAKDIR/$base
if(test -e $dest)
then
echo "skip exist $base"
else
echo "copying $base"
cp $base $BAKDIR
fi
fi
done
echo "backup mysql binlog ok"