Where is the my.cnf file for Homebrew MySQL?

Locating my.cnf for Homebrew MySQL Installations

Question: For MySQL installations via Homebrew, is there a default my.cnf file, and if so, where is it located?

Answer:

By default, Homebrew MySQL installations do not include a my.cnf file. Consequently, MySQL initializes with its default settings.

Creating and Customizing my.cnf:

To override the default settings, create a custom my.cnf file and place it at /etc/my.cnf.

Locating Alternative Configuration Files:

You can also check the location of other configuration files by running mysql --help.

Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/etc/my.cnf ~/.my.cnf 

Bypassing Configuration Files:

When invoking mysql from the command line, you have options to bypass configuration files or specify other files to read:

• --no-defaults: Do not read any default configuration files.
• --defaults-file=#: Specify a specific file to read.
• --defaults-extra-file=#: Read an additional file after the default files have been read.

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