讓shell script執行MySQL指令

> vi　/var/db/process.sh

#呼叫MySQL StoreProcedure

#!/bin/sh
/usr/local/bin/mysql -uroot -prootpass -vvv -e "CALL TESTDB.pr_process_list()" > out.txt

-vvv : 可將訊息輸出到out.txt

或
usr/local/bin/mysql -uroot -prootpass -vvv < mysqlinputdata.txt > mysqloutputdata.txt
mysql執行mysqlinputdata.txt檔，並將訊息輸出到mysqloutputdata.txt

將processlist的筆數和資料存到資料庫內

DELIMITER $$

DROP PROCEDURE IF EXISTS `TESTDB`.`pr_process_list`$$
CREATE DEFINER=`root`@`%` PROCEDURE  `TESTDB`.`pr_process_list`()
BEGIN
  insert into TESTDB.processcount(num, create_date)
  select COUNT(*) ,now()
  from information_schema.PROCESSLIST;

  insert into TESTDB.processlist(ID, USER, HOST, DB, COMMAND, TIME, STATE, INFO, create_date)
  select ID, USER, HOST, DB, COMMAND, TIME, STATE, INFO,now()
  from information_schema.PROCESSLIST;
END $$

DELIMITER ;


呼叫MySQL StoreProcedure
mysql> CALL `TESTDB`.`pr_process_list`

重設root密碼

用root登入，出現Access denied for user 'root'@'localhost'

解決方式：

1.進入ssh
sudo su -

2.停止mysql
> cd /usr/local/etc/rc.d/
> ./mysql-server stop

3啟動mysql
> mysqld_safe --user=mysql --skip-grant-tables --skip-networking &

4.進入mysql
> mysql -u root mysql

5.更新 root 密碼
mysql> update user set password=PASSWORD('XXX') where user='root';
mysql> flush privileges;
mysql> exit;

6.重啟mysql
/usr/local/bin/mysqld_safe &
或
cd /usr/local/etc/rc.d/
./mysql-server restart

7.測試密碼
mysql -uroot -p
Enter password:

改變檔案擁有者

chown [-R] 帳號名稱 檔案或目錄
chown [-R] 帳號名稱:群組名稱 檔案或目錄
ex:
# chown -R mysql:mysql /var/db/mysql


資料來源：
http://linux.vbird.org/linux_basic/0210filepermission.php#chown

MySQL的index重整

//mysql的update statisic

進ssh sudo -

# mysql -uXXX -p


//testtable指的是table name
mysql>optimize table testtable

列出某個資料庫的所有table

//MySQL5
mysql> SELECT * FROM information_schema.`TABLES`;

或
show tables from DBNAME;
或

進入ssh

sudo su -

mysqlshow -uroot -p mysql

Database: mysql
+---------------------------+
|          Tables           |
+---------------------------+
| columns_priv              |
| db                        |
| event                     |
| func                      |
| general_log               |
| help_category             |
| help_keyword              |
| help_relation             |
| help_topic                |
+---------------------------+

在ssh下sql語法

進入ssh

sudo su -

ex:找出mysql db 下的select語法
mysql -uroot -p -e "SELECT host, db,user from db" mysql


+------+---------+------+
| host | db      | user |
+------+---------+------+
| %    | test    |      |
| %    | test\_% |      |
+------+---------+------+

查詢MySQL 有多少資料庫

進入ssh

sudo su -


mysqlshow -uroot -ppasswd

+--------------------+
|     Databases      |
+--------------------+
| information_schema |
| mysql              |
| test               |
+--------------------+

修改mysql登入的密碼

mysql>update mysql.user set password=PASSWORD('aaaa') where password = '';

 mysql>flush privileges;

FreeBSD查詢系統裝了哪些軟體

pkg_info

ex:查詢有沒有裝mysql這個關鍵字的套件
pkg_info | grep 'mysql'

FreeBSD查閱系統與核心相關資訊

uname -a

//查os版本
sysctl kern.ostype
=> kern.ostype: FreeBSD

sysctl kern.osrelease
=> 8.3-RELENG_8-20120624-JPSNAP

在FreeBSD中啟動MySQL

shell> sudo su -
shell> cd /usr/local/etc/rc.d/
shell> ./mysql-server start (開始)
shell> ./mysql-server stop (停止)
shell> ./mysql-server restart (重啟)
或

關閉 mysql 服務
shell> cd /usr/local/bin/
shell> ./mysqladmin shutdown -u -p<輸入密碼>

啟動 mysql 服務
shell> cd /usr/local/bin
shell> ./mysqld_safe &

取得radiobutton的值

javascript：

$("input[name='radiom']").click(function(){
var v = $("input[name='radiom'][@checked]").val();
alert(v);
});

html：
＜input name="radiom" type="radio" value="1" checked="checked" />
＜input name="radiom" type="radio" value="2" checked="checked" />
＜input name="radiom" type="radio" value="3" checked="checked" />