单实例

启动：mysqld_safe --user=mysql &

停止：mysqladmin -u root -proot shutdown

开发脚本

#!/bin/bash#chkconfig:23453050#Date:2017-6-29#Author:xcn(baishuchao@yeah.net)#versionUltimatesPID="/var/run/mysqld/mysqld.pid"user="root"#定义用户名密码pass="root"path="/usr/bin"./etc/init.d/functionsfunctionusage(){echo"$0{start|stop|restart}"exit1}[$#-ne1]&&usage#当$#号等于1则执行usage函数#start_mysqlfunctionstart_mysql(){if[!-f$PID]then$path/mysqld_safe--user=mysql&>/dev/null2>&1#一定要全路径以免出错if[$?-eq0]thenaction"startmysql"/bin/trueelseaction"startmysqlerro"/bin/falsefielseecho"mysqldisrunning"fi}#stop_mysqlfunctionstop_mysql(){$path/mysqladmin-u$user-p$passshutdown>/dev/null2>&1if[$?-eq0]thenaction"stopmysql"/bin/trueelseaction"stopmysqlerro"/bin/falsefi}#传参判断执行if["$1"=="start"]thenstart_mysqlelif["$1"=="stop"]thenstop_mysqlelif["$1"=="restart"]thenstop_mysqlstart_mysqlelse#不符合以上则打印usage函数usagefi