Выполните в терминале:

sudo apt-get install dokuwiki

Устраним проблемы, которые могут помешать нам запустить установщик DokuWiki в браузере:

sudo nano /etc/apache2/conf.d/dokuwiki.conf

в убунту 16 это

 sudo nano /etc/dokuwiki/apache.conf

найдите строку

Alias /dokuwiki /usr/share/dokuwiki/

Теперь удалите слэш, следующий после /usr/share/dokuwiki. После этого файл должен содержать только:

Alias /dokuwiki /usr/share/dokuwiki

Нажмите ctrl-X для выхода из редактора и нажмите Y для сохранения. Теперь перезапустим Apache2 :

sudo /etc/init.d/apache2 restart

Вы почти готовы идти дальше. Посетите: http://localhost/dokuwiki/doku.php
Remember, that default configuration prevents you from visiting you dokuwiki outside localhost.

The initial DokuWiki setup is actually done when DokuWiki is installed. Если вы хотите вернуть первоначальные настройки (http://localhost/dokuwiki/install.php) вы должны сделать следующее:

sudo chown -R www-data /usr/share/dokuwiki/conf/
sudo rm /usr/share/dokuwiki/conf/users.auth.php
sudo rm /usr/share/dokuwiki/conf/acl.auth.php
sudo nano /usr/share/dokuwiki/install.php

Найдите следующие строки кода:

  // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
  $installation_hash = md5(preg_replace("/(\015\012)|(\015)/","\012",
                           @file_get_contents(DOKU_CONF.'dokuwiki.php')));
  if (!in_array($installation_hash, $dokuwiki_hash)) {
        $error[] = sprintf($lang['i_badhash'],$installation_hash);
        $ok = false;
    }

Замените

$ok = false;

на

$ok = true;

Run the initial configuration with

http://localhost/dokuwiki/install.php

The version of DokuWiki that comes with Ubuntu is generally slightly older. Installing it via the package manager also does not seem to work very well. You can easily install the latest version by following these steps (tested on Ubuntu 9.04):

• Make sure you have apache2 and PHP installed. If you do not have those up already, there are lots of instructions for installing them. You can test if you have Apache installed by navigating your browser to http://localhost/
• Make sure you have the utility wget installed. Run the Synaptic Package Manager (click System, Administration, Synaptic Package Manager) and search for wget. It is very small so it is quick to install.
• Go to the DokuWiki downloads page and get the link for the version you want to use. It will be something like: http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-2010-11-07.tgz

Now click Applications, Accessories, Terminal. Then enter these commands:

cd /var/www
sudo wget http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-2010-11-07.tgz
sudo tar xvf dokuwiki-2010-11-07.tgz
sudo mv dokuwiki-2010-11-07 dokuwiki
sudo chown -R www-data:www-data /var/www/dokuwiki

The last line is the bit of magic that will fix the write and access permissions and make apache2 find the files. Incidentally, nearly the same recipe can be successfully used to install other Apache applications such as Joomla, Drupal, etc. Needless to say, update the above command by changing the names slightly if you choose to download a different version of DokuWiki.

If you do not have wget, simply click in your browser to download the the DokuWiki file. Then do this:

cd /var/www
sudo mv /home/USER/Desktop/dokuwiki-2009-12-25c.tgz .
(Now continue on with the tar command above)

Now you should be able to navigate to http://localhost/dokuwiki/install.php

With this approach the package manager will not show DokuWiki as installed. To uninstall it again completely, do this:

cd /var/www
sudo rm -r -f dokuwiki