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执行sql文件

#/bin/bash
host='127.0.0.1'
dbUser='root'
dbPassword=''
sql_file='test.sql'
city_array=('bj' 'sh' 'tj')
type="test"
for city in ${city_array[@]};
do

    dbName=${type}'_'${city}
    echo $dbName
    #多库建表
    mysql -h $host -u $dbUser -p$dbPassword -f $dbName -e "source $sql_file";
done

直接执行sql

#/bin/bash
host='127.0.0.1'
dbUser='root'
dbPassword=''
city_array=('bj' 'sh' 'tj')
type="test"
for city in ${city_array[@]};
do
    dbName=${type}'_'${city}
    echo $dbName
    #多库增加字段
    mysql -h $host -u $dbUser -p$dbPassword -e "
    use $dbName;
    ALTER TABLE test_table1 ADD refresh_time int(11)  DEFAULT '0' COMMENT '刷新时间';
    notee  #关闭记录功能
    quit";
done

获取sql执行结果

result=`mysql -u$user -p$pass -D $db -e "select host from user;"`

 也可以导出来再处理

result=`mysql -u$user -p$pass -D $db -e "select host from user;"`
echo $result >2