http://codex.wordpress.org/Upgrading_WordPress

tar -cvvf wordpress_backup_[date].tar public_html mv public_html wordpress_old_[version]

用 phpmyadmin or mysqldump 等等

http://wordpress.org/download/

tar -zxvf [filename].tar

mv wordpress [自定]

wp-config.php '' // ** MySQL settings ** // define('DB_NAME', 'wordpress'); // The name of the database define('DB_USER', 'username'); // Your MySQL username define('DB_PASSWORD', 'password'); // …and password define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value

// You can have multiple installations in one database if you give each a unique prefix $table_prefix = 'wp__'; // Only numbers, letters, and underscores please! ''

http://[DN or IP]/[path to wordpress]/wp-admin/upgrade.php