mysql - 在 Ubuntu 上使用 APT 安装的 MySQL 的 BASEDIR 在哪里？

Question

根据 MySQL 文档，2.10.1 Initializing the Data Directory :

1. Change location into the top-level directory of your MySQL installation, represented here by BASEDIR:

   shell> cd BASEDIR

   BASEDIR is likely to be something like /usr/local/mysql or /usr/local. The following steps assume that you have changed location to this directory.

   You will find several files and subdirectories in the BASEDIR directory. The most important for installation purposes is the bin subdirectory, which contains the server as well as client and utility programs.

我检查过/usr/local/mysql 和/usr/local，但它们都不包含任何与MySQL 相关的内容。 which mysql 返回 /usr/bin/mysql，但我不认为 /usr/bin 会是 MySQL 的基本目录。

文档说我需要在 BASEDIR 下创建一个名为 mysql-files 的目录，所以我想知道在哪里可以找到它。

Answer 1

基本目录是一个系统变量，所以如果你想知道它是什么，你应该可以简单地询问运行中的服务器:

mysql> SELECT @@BASEDIR;

https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_basedir