xampp in ubuntu下命令行启动mysql报错：
reddevil@reddevil-Lenovo:/opt/lampp$ ./bin/mysql -u root -p Enter password: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/opt/lampp/var/mysql/mysql.sock' (2)
启动mysql服务：
reddevil@reddevil-Lenovo:/opt/lampp$ /opt/lampp/lampp start You need to start XAMPP as root! reddevil@reddevil-Lenovo:/opt/lampp$ su root Password: root@reddevil-Lenovo:/opt/lampp# /opt/lampp/lampp start Starting XAMPP for Linux 1.7.7... XAMPP: Starting Apache with SSL (and PHP5)... XAMPP: Starting MySQL... XAMPP: Starting ProFTPD... XAMPP for Linux started.
运行mysqlStart.sh：
#!/bin/bash sudo rm -rf /var/run/mysqld sudo mkdir /var/run/mysqld sudo ln -s /opt/lampp/var/mysql/mysql.sock /var/run/mysqld/mysql.sock
关于此这篇文章给出很好的分析：http://www.samundra.com.np/solved-error-2002-hy000-cant-connect-to-local-mysql-server-through-socket-varrunmysqldmysqld-sock-2/563
命令行启动mysql
reddevil@reddevil-Lenovo:/opt/lampp$ ls bin error htdocs lampp libexec logs phpmyadmin sbin tmp cgi-bin etc icons lib licenses modules RELEASENOTES share var reddevil@reddevil-Lenovo:/opt/lampp$ /bin/mysql -u root -p bash: /bin/mysql: No such file or directory reddevil@reddevil-Lenovo:/opt/lampp$ ./bin/mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.16 Source distribution Copyright (c) 2000, 2011, 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>
至此，问题解决