#/bin/bash

LOG_FILE=/home/hadoop1/log/installmysql.log

function RpmMysql(){

key=$1

r=$(rpm -qa $key)

if [ $r ];

then

	return 1

else

	return 0

fi

}

mysql="mysql-server"

RpmMysql mysql

r=$?

if [ $r -eq 1 ] ;

then

	echo "$mysql was installed"

#	mv /var/lib/mysql/mysql.sock /var/lib/mysql/mysql.sock.bak

	service mysqld start

else

	echo "$mysql was not installed"

	yum install mysql mysql-server mysql-devel

	service mysqld start

fi

chown -R mysql:mysql /var/lib/mysql

echo "install and start mysql success"

#add user to mysql database

user1=root

password1=123456

host=192.168.0.200

user2=hadoop

password2=123456

echo "INFORM:Enter database root password"

#mv /var/lib/mysql/mysql.sock /var/lib/mysql/mysql.sock.bak

#mysql -uroot -p </root/addroothadoop.sql>

user1=root

password1=123456

host=192.168.0.200

user2=hadoop

password2=123456

echo "INFORM:Enter database root password"

mysql -uroot  -e "use mysql;update user set password =password('$password1') where user='$user1';insert ignore into mysql.user(User,Password)values('$user2','password2');grant all privileges on *.* to $user2@'%' identified by '$password2';flush privileges;"

echo "configure done"

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), 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}"