shell学习二十三--case语句编写mysql启动脚本
发布时间：2020-12-15 09:15:17 所属栏目：安全 来源：网络整理
导读：六、例子：开发mysql单实例或者多实例启动脚本 已知mysql多实例启动命令为： mysqld_safe --deafaults-file=/data/3306/my.cnf 停止命令 mysqladmin -u root -p123 -S /data/3306/mysql.sock shutdown 请完成mysql单实例或者多实例启动脚本编写。 要求：用函
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六、例子：开发mysql单实例或者多实例启动脚本 已知mysql多实例启动命令为： mysqld_safe --deafaults-file=/data/3306/my.cnf & 停止命令 mysqladmin -u root -p123 -S /data/3306/mysql.sock shutdown 请完成mysql单实例或者多实例启动脚本编写。 要求：用函数、case语句等实现。 [root@node01 day10]# vi start_db.sh #!/bin/sh # chkconfig: 2345 35 67 # description: start rsync and stop rsync scripts. . /etc/init.d/functions path=/usr/bin/ pass=123 user=root function usage(){ echo "$0 {start|stop|restart}" exit 1 } [ $# -ne 1 ] && usage function start_mysql(){ $path/mysqld_safe --user=mysql >/dev/null 2>&1 & if [ $? -eq 0 ] then action "start mysql" /bin/true else action "start mysql" /bin/false fi } function stop_mysql(){ mysqladmin -u$user -p$pass shutdown >/dev/null 2>&1 if [ $? -eq 0 ] then action "stop mysql" /bin/true else action "stop mysql" /bin/false fi } case "$1" in start) start_mysql RETVAL=$? ;; stop) stop_mysql RETVAL=$? ;; restart) stop_mysql sleep 2 start_mysql RETVAL=$? ;; *) usage esac [root@node01 day10]# sh start_db01.sh start start mysql [ OK ] [root@node01 day10]# sh start_db01.sh stop stop mysql [ OK ] [root@node01 day10]# sh start_db01.sh restart stop mysql [FAILED] start mysql [ OK ] [root@node01 day10]# mysql -uroot -p123 Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 1 Server version: 5.1.73 Source distribution Copyright (c) 2000,2013,Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |