コマンドラインで mysql が使えない。
$ mysql --version
mysql Ver 8.0.16 for osx10.14 on x86_64 (Homebrew)
$ sudo service mysqld start
sudo: service: command not found
$ service mysqld status
-bash: service: command not found
$ mysql -u root
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
sudo touch /tmp/mysql.sock
$ sudo mysql.server restart
ERROR! MySQL server PID file could not be found!
Starting MySQL
.Logging to '/usr/local/var/mysql/xxxxxx-puro.local.err'.
ERROR! The server quit without updating PID file (/usr/local/var/mysql/xxxxxx-puro.local.pid).