mysql用shell脚本链接数据库进行操作
使用 mysql -e 参数可以执行各种 sql 的各种操作语句。不用在mysql的提示符下运行mysql，即可以在shell中操作mysql的方法。格式：mysql-hhostname -Pport -uusername -ppassword-e “”
#!/bin/bash
HOSTNAME="192.168.70.161" #数据库服务器地址
PORT="3306"
USERNAME="root"
PASSWORD="123456"
DBNAME="test_db_test" #数据库名称
TABLENAME="test_table_test" #数据库中表的名称
#也可以写 HOSTNAME="localhost"，端口号 PORT可以不设定
#创建数据库
create_db_sql="create database IF NOT EXISTS ${DBNAME}"
mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} -e "${create_db_sql}"
注意：-p${PASSWORD}中间不能有空格
#创建表
create_table_sql="create table IF NOT EXISTS ${TABLENAME} (name varchar(20),> mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD}-D ${DBNAME} -e "${create_db_sql}"
#插入数据
insert_sql="insert into ${TABLENAME} values('billchen',2)"
mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e"${insert_sql}"
#查询
select_sql="select * from ${TABLENAME}"
mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}"
#更新数据
update_sql="update ${TABLENAME} set> mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${update_sql}"
mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e"${select_sql}"
#删除数据
delete_sql="delete from ${TABLENAME}"
mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e"${delete_sql}"
mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e"${select_sql}"
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