linux shell命令执行sql(mysql入门)
今天做个linux下的shell操作数据库的入门例子1.shell文件内容：
#!/bin/bash
HOSTNAME="11.8.8.87"
PORT="3306"
USERNAME="root"
PASSWORD="root"
DBNAME="testa"
TABLENAME="test"
use_db_sql="use ${DBNAME}"mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} -e "${use_db_sql}"
insert_sql="insert into ${TABLENAME} values('7','mike','123456')"
mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${insert_sql}"
主机地址：11.8.8.87 端口：3306数据库：testa 表：test
2.test表结构：
mysql> desc test;
+----------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+----------------+
| t_id | int(24) | NO | PRI | NULL | auto_increment |
| username | varchar(32) | YES| | NULL | |
| password | varchar(32) | YES| | NULL | |
+----------+-------------+------+-----+---------+----------------+
3 rows in set (0.00 sec)
3.我这里命名shell文件名为：mysqltestshell，在windows上编辑后上传到linux服务器上，
修改权限：chmod +x mysqltestshell
执行./mysqltestshell，
报错：-bash: ./mysqltestshell: /bin/bash^M: bad interpreter: No such file or directory
解决办法：
vi mysqltestshell
然后用命令 :set ff?
可以看到dos或unix的字样. 如果的确是dos格式的, 那么你可以用set ff=unix把它强制为unix格式的, 然后存盘退出. 再运行一遍看.
4.运行结果
请自觉忽略乱码情况（此处只是测试），可以看到新增了一条记录
mysql> select * from test;
+------+----------+----------------------+
| t_id | username | password |
+------+----------+----------------------+
| 1 | 娴璇 | 娴璇瀵鐮 |
| 2 | ?? | 娴璇瀵鐮 |
| 3 | ?? | 忙碌?猫炉?氓炉?莽聽? |
| 4 | ?? | ???? |
| 5 | ?? | ???? |
| 6 | ?? | ???? |
| 7 | mike | 123456 |
+------+----------+----------------------+
7 rows in set (0.00 sec)
----------------------------------------------------------补充----------------------------------------------------------------
mysql-hhostname -Pport -uusername -ppassword-e相关mysql的sql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。
#!/bin/bash
HOSTNAME="192.168.111.84" #数据库信息
PORT="3306"
USERNAME="root"
PASSWORD=""
DBNAME="test_db_test" #数据库名称
TABLENAME="test_table_test" #数据库中表的名称
#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}"
#创建表
create_table_sql="create table IF NOT EXISTS ${TABLENAME} (name varchar(20),> mysql -h${HOSTNAME}-P${PORT}-u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${create_table_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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