实战:自定义脚本启动mysql-mysql 5.6.19

根据工作环境,自定义一个mysql启动脚本

---1.保存为/usr/local/mysql/scripts/mysql_env.ini

#set mysql init variables
MYSQL_USER=system #mysql的用户名
MYSQL_PASS='password' #mysql的登录用户密码

#check input parameter or no
if [ $# -ne 1 ] ; then #判断输入的参数个数
echo "mysql port is 3306"
MYSQL_PORT=3306
else
MYSQL_PORT=$1 #$1是传入的第1个位置参数
echo "mysql port is $1"

fi

---2.启动mysql

#!/bin/sh
#[email protected]

MY_CNF=/usr/local/mysql/my.cnf #mysql的配置文件

MYSQLD_SAFE=/usr/local/mysql/bin/mysqld_safe

source /usr/local/mysql/scripts/mysql_env.ini

ERRORLOG=`grep -i "^log-error" $MY_CNF |cut -d = -f 2`

INIT_NUM=1

PORTNUM=`netstat -lnt|grep ${MYSQL_PORT}|wc -l`

if [ ! -x $MYSQLD_SAFE ]; then
 echo "mysql安装时启动文件未安装到$MYSQLD_SAFE或无执行权限"
 exit 1  #0是执行成功,1是执行不成功
else  
if [ $PORTNUM = 1  ]; then
echo  "A mysqld process already exists,please stop mysql at first! "
exit 0
else
 echo "启动本机mysql端口为:$MYSQL_PORT的服务"
 $MYSQLD_SAFE --defaults-file=$MY_CNF  > /dev/null &
 while  [ $INIT_NUM  -le 5 ]
 do
 PORTNUM=`netstat -lnt|grep ${MYSQL_PORT}|wc -l`
 echo "mysql启动中....请稍等..."
 sleep 5
  if [ $PORTNUM = 1  ];
  then
   echo "mysql                                      ****启动成功****"
  exit 0
  fi

 INIT_NUM=$(($INIT_NUM +1))
 done
fi
  echo -e "mysql启动失败,请检查错误日志`echo 'cat ' ${ERRORLOG}`"
echo "*****************************************"
exit 0
fi

---3.加入环境变量即可

echo "export PATH=/usr/local/mysql/scripts:\$PATH">>~/.bash_profile

source ~/.bash_profile