数据库分库分表备份和shell脚本

#!/bin/bash

mysql=“mysql -uroot -p1234”

bei=\”mysqldump -uroot -p1234 \”

ku=

$mysql -e \"show databases;\"|sed 1d|egrep -v \"schema|mysql|test\"

for shu in kudobiao=‘kudo biao=`kudobiao=‘mysql -e “show tables from $ku;”|sed 1d`
for tables in biaodomkdir−p/opt/biaodo mkdir -p /opt/biaodomkdir−p/opt/(date +%F)

$bei $shu tables>/opt/tables >/opt/tables>/opt/(date +%F)/KaTeX parse error: Expected group after \’_\’ at position 4: shu_̲tables.sql
done
done

定时任务
yum -y install crontab
编辑任务
crontab -e