====== 更新 Wordpress 版本 ======
http://codex.wordpress.org/Upgrading_WordPress

===== 備份檔案 =====
<code># tar -cvvf wordpress_backup_[date].tar public_html
# mv public_html wordpress_old_[version]</code>

===== 備份資料庫 =====
用 phpmyadmin or mysqldump 等等

===== 下載新版本 =====
http://wordpress.org/download/

===== 解開 =====
<code># tar -zxvf [filename].tar</code>

===== 更改資料夾名稱及存放路徑 =====
<code># mv wordpress [自定]</code>

===== 修改設定檔 =====
wp-config.php
<code>
// ** 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!
</code>

===== 讓網頁自動更新 =====
http://[DN or IP]/[path to wordpress]/wp-admin/upgrade.php



===== 將 theme 複製回去 =====
將 theme 和 plug-in 複製回去，以及將 mail 到 news 的程式碼複製回去

===== 完成 =====
算蠻容易的~

====== 製作版本差異檔 ======
在 blog 檔案目錄的上一層
  $ diff -ruN wordpress-2.1.2 wordpress-2.1.3 > 212_to_213
  $ patch -p1 < ../212_to_213