===== Dokuwiki Upgrade =====

  - Download desired version (Hint: only select necessary languages) \\ https://download.dokuwiki.org
  - Create a backup: \\ ''tar zcpfv /web/backup/dokuwiki-200825.tar.gz /web/www/kb''
  - Extract the new version: \\ ''tar xzvf dokuwiki-919579ec6e60818f9f712747c2b681d6.tgz''
  - Copy new files: \\ ''rsync -avh /tmp/dokuwiki/ /web/www/kb''
  - Restore ownership (on Debian): \\ ''chown -R www-data:www-data /web/www/kb''
  - Optionally remove files which are not needed anymore: \\ ''grep -Ev '^($|#)' /web/www/kb/data/deleted.files | xargs -n 1 rm -rf''
  - Upgrade templates and plugins if necessary