chmod +x mwdump-to-pandoc

# Get the newest release of pandoc from https://github.com/jgm/pandoc/releases/latest , e.g.:
wget https://github.com/jgm/pandoc/releases/download/1.16.0.2/pandoc-1.16.0.2-1-amd64.deb

# grab a wikipedia dump, e.g. 
wget https://dumps.wikimedia.org/dawiki/20160111/dawiki-20160111-pages-articles.xml.bz2

# run conversion:
bzcat dawiki-20160111-pages-articles.xml.bz2 | ./mwdump-to-pandoc | xz - > dawiki-20160111-pandoc.txt.xz