Having setup a Raspberry Pi as a webserver, you may want to run WordPress on it.
SSH to your Pi and change into the web root folder:
remove all the files currently there
sudo rm *
Download the latest WordPress package
sudo wget http://wordpress.org/latest.tar.gz
Extract the Tarball to get to the wordpress files.
sudo tar xzf latest.tar.gz
Move the extracted files into the current directory and remove the tarball file.
sudo mv wordpress/* . sudo rm -rf wordpress latest.tar.gz