root@PC-RENGUOQIANG:/usr/sbin# /etc/init.d/mysql start * Starting MySQL database server mysqld [ OK ] root@PC-RENGUOQIANG:/usr/sbin# ps -ef | grep mysql mysql 171 1 0 11:58 ? 00:00:00 /bin/sh /usr/bin/mysqld_safe mysql 641 171 0 11:58 ? 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --log-error=/var/log/mysql/error.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306 --log-syslog=1 --log-syslog-facility=daemon --log-syslog-tag= root 740 7 0 13:47 tty1 00:00:00 grep --color=auto mysq
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - 国内版 Bing
https://cn.bing.com/search?FORM=U227DF&PC=U227&q=ERROR+2002+(HY000)%3A+Can%27t+connect+to+local+MySQL+server+through+socket+%27%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock%27+(2)
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - 乐于改变 - CSDN博客
https://blog.csdn.net/lmss82/article/details/4414178
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) - LaMw - 博客园
https://www.cnblogs.com/Lam7/p/6090975.html
MYSQL错误解决：ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)-云栖社区-阿里云
https://yq.aliyun.com/articles/44934
phpmyadmin - ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - Stack Overflow
https://stackoverflow.com/questions/11657829/error-2002-hy000-cant-connect-to-local-mysql-server-through-socket-var-run
Can’t connect to local MySQL server through socket_数据库技术_Linux公社-Linux系统门户网站
https://www.linuxidc.com/Linux/2018-05/152246.htm
文件相关路径：
MySQL
https://help.ubuntu.com/lts/serverguide/mysql.html
Ubuntu中MySQL5.7设置utf8编码格式步骤 - 为了、梦想 的博客 - CSDN博客
https://blog.csdn.net/qq_32144341/article/details/51318390
ubuntu彻底删除mysql,并重装 - weixin_41918841的博客 - CSDN博客
https://blog.csdn.net/weixin_41918841/article/details/82993537
root@PC-RENGUOQIANG:~# cat /etc/mysql/my.cnf # # The MySQL database server configuration file. # # You can copy this to one of: # - "/etc/mysql/my.cnf" to set global options, # - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports. # Run program with --help to get a list of available options and with # --print-defaults to see which it would actually understand and use. # # For explanations see # http://dev.mysql.com/doc/mysql/en/server-system-variables.html # # * IMPORTANT: Additional settings that can override those from this file! # The files must end with '.cnf', otherwise they'll be ignored. # !includedir /etc/mysql/conf.d/ !includedir /etc/mysql/mysql.conf.d/ root@PC-RENGUOQIANG:~# cat /etc/mysql/mysql.conf.d/mysqld.cnf