====== Using diff to upgrade dokuwiki ======
===== Download source code =====
到 http://www.splitbrain.org/projects/dokuwiki 下載正在使用的版本的 source code，以及新版本的 source code。
  wget "http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-[Version].tgz"

For example:
  wget "http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-rc2007-05-24.tgz"
  wget "http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-2007-06-26b.tgz"

===== Unpack =====
  tar -zxf dokuwiki-[Version].tgz

For example:
  tar -zxf dokuwiki-rc2007-05-24.tgz
  tar -zxf dokuwiki-2007-06-26b.tgz

===== Create patch =====
  diff -Naur [Old Version] [New Version] > wiki.diff

For example:
  diff -Naur dokuwiki-rc2007-05-24 dokuwiki-2007-06-26b > wiki.diff

===== Apply patch =====
進入程式所在資料夾，通常是 public_html。
==== Test ====
  patch -p1 <../wiki.diff --dry-run
會顯示所有受到更動檔案。

==== Apply ====
  patch -p1 <../wiki.diff