ERROR 2002 (HY000) when starting MySQL: Can't connect to local MySQL server through socket'/tmp/mysql.sock' (2)

error contents

When I try to start MySQL, enter the following command and enter the password, an error occurs ...

$mysql -u root -p
Enter password: 

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

The password should be correct ...

Solutions

I forgot to type the following command first when booting. It's just a mistake.

$mysql.server start
Starting MySQL
. SUCCESS! 

Try again!

$mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.32 Homebrew

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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>

I was able to start it safely!

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