mysql简单备份脚本

#!/bin/bash
#army.han
#2016-11-11
#new_gj_DBbackup
#备份路径配置
GSdir='/data/dbbackup/mysqlDB'
TIME=`date "+%Y%m%d"`
MYSQL=`which mysql`
MYSQLDUMP=`which mysqldump`
GSbackup(){
	DBhost=$1
	DBuser=$2
	DBpass=$3
	DBname=`$MYSQL -h$DBhost -u$DBuser -p$DBpass -e "show databases;"|egrep -v "information_schema|performance_schema|mysql|Database"`
	for i in $DBname;do
		[ -d $GSdir ]||mkdir -pv $GSdir
        $MYSQLDUMP -h$DBhost -u$DBuser -p$DBpass -R $i > ${GSdir}/$DBhost${i}_$TIME.sql
        [[ $? -ne 0 ]] && echo "$i database backup failed" >>/tmp/mysql_error.log
	cd $GSdir
        tar -zcf $DBhost-${i}_$TIME.tar.gz $DBhost${i}_$TIME.sql && rm -f $DBhost${i}_$TIME.sql
	done
}
#添加备份数据库，可以备份多个，直接调用函数就OK
GSbackup localhost root  123456
find ${GSdir}/* -ctime +7 -type f -name "*.tar.gz" -exec rm -f {} \;