备份数据脚本

#!/bin/bash
# 或者这样来写$(date +%F)
day=$(date +%Y_%m_%d)

size=$(du -sh /var/lib/mysql)

echo "Date:$day" >> /tmp/dbinfo.txt

echo "DataSize:$size" >> /tmp/dbinfo.txt

cd /opt/dbbak

tar zcf mysql_bak_${day}.tar.gz /var/lib/mysql /tmp/dbinfo.txt

rm -f /tmp/dbinfo.txt

----- 这里是备份一下mysql数据文件