For the latest Staple version:
wget https://download.dokuwiki.org/src/dokuwiki/dokuwiki-stable.tgz
or, for the Release Candidate Version:
wget https://download.dokuwiki.org/src/dokuwiki/dokuwiki-rc.tgz
tar xvzf dokuwiki-stable.tgz
NOTE: For the Release Candidate version use:
tar xvzf dokuwiki-rc.tgz
sudo mv dokuwiki-XXX /var/www/html/dokuwiki
NOTE: where XXX is the release number.
NOTE: If this is an upgrade to an existing DokuWiki install, then the following will override the previous copy with the latest version:
'cp' -af dokuwiki-rcXXX/* /var/www/dokuwiki/
Copy the sample .htaccess file:
sudo cp /var/www/html/dokuwiki/.htaccess{.dist,}
sudo chown -R www-data:www-data /var/www/html/dokuwiki