shell 执行mysql操作
方法一：
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="127.0.0.1" #数据库信息
PORT="3306"
USERNAME="root"
PASSWORD="root"
DBNAME="db_test" #数据库名称
TABLENAME="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 ${TABLENAME} ( name varchar(20), id int(11) default 0 )"
mysql -h${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 ${TABLENAME} set id=3"
mysql -h${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}"
方法二：
#!/bin/sh
echo "use MHFCDB;
insert into \`robot_action\` (ActionId, RobotAction) VALUES('0', '随机');
insert into \`robot_action\` (ActionId, RobotAction) VALUES('1', '移动');
insert into \`robot_action\` (ActionId, RobotAction) VALUES('2', '喊话');
insert into \`robot_action\` (ActionId, RobotAction) VALUES('3', '技能');
insert into \`robot_action\` (ActionId, RobotAction) VALUES('4', '副本');
INSERT INTO \`login_position\` (PostionName, PostionCoord, PostionOrit) VALUES('出生点', '609.30*758.43*148.25@1', '0*0*0');
INSERT INTO \`login_position\` (PostionName, PostionCoord, PostionOrit) VALUES('主城酒馆二楼', '661.90*759.38*150.51@1', '0*0*0');
" > sqlfile
mysql -u root < sqlfile
rm sqlfile
echo "robot_action init succesed!!"
===========================================================================================
1.直接管道过去
echo "show databases" | mysql -uroot -p'123456'
Database
information_schema
mysql
sakila
test
2.从文件
[root@kenthy sakila-db]# cat file
show databases;
[root@kenthy sakila-db]# mysql -uroot -p'123456' < file
Database
information_schema
mysql
sakila
test
3.块
[root@kenthy sakila-db]# mysql -uroot -p'123456' << SQL
> show databases;
> SQL
Database
information_schema
mysql
sakila
test
===========================================================================================
Bash#!/usr/bin/perl
use DBI;
$db = DBI->connect('dbi:mysql:test', 'vpsee', 'password');
$query = "select * from test_mark";
$cursor = $db->prepare($query);
$cursor->execute;
while (@row = $cursor->fetchrow_array) {
print "@row\n";
}#!/bin/bash
mysql -uvpsee -ppassword test <
select * from test_mark;
EOFMYSQL
如果需要复杂的数据库操作的话不建议用 shell 脚本，用 Perl/Python/PHP 操作数据库很方便，分别通过 Perl DBI/Python MySQLdb/PHP MySQL Module 接口来操作数据库。这里再给出这三种不同语言连接、查询数据库的简单例子(为了简单和减少篇幅删除一些不必要的代码)：
Perl#!/usr/bin/perl
$db = DBI->connect('dbi:mysql:test', 'vpsee', 'password');
$query = "select * from test_mark";
$cursor = $db->prepare($query);
$cursor->execute;
while (@row = $cursor->fetchrow_array) {
print "@row\n";
}
Python#!/usr/bin/python
import MySQLdb
db = MySQLdb.Connect("localhost", "vpsee", "password", "test")
cursor = db.cursor()
query = "SELECT * FROM test_mark"
cursor.execute(query)
while (1):
row = cursor.fetchone()
if row == None:
break
print "%s, %s, %s, %s" % (row[0], row[1], row[2], row[3])
#!/usr/bin/python
db = MySQLdb.Connect("localhost", "vpsee", "password", "test")
cursor = db.cursor()
query = "SELECT * FROM test_mark"
while (1):
if row == None:
break
print "%s, %s, %s, %s" % (row[0], row[1], row[2], row[3])
PHP
#!/usr/bin/php
?php
$db = mysql_connect("localhost", "vpsee", "password");
mysql_select_db("test");
$result = mysql_query("SELECT * FROM test_mark");
while ($row = mysql_fetch_array($result)) {
print "$row[0] $row[1] $row[2] $row[3]\n";
}
?>#!/usr/bin/php
?php
$db = mysql_connect("localhost", "vpsee", "password");
mysql_select_db("test");
$result = mysql_query("SELECT * FROM test_mark");
while ($row = mysql_fetch_array($result)) {
print "$row[0] $row[1] $row[2] $row[3]\n";
}
?>