Asqatasun v4 - Download Asqatasun
You should have already done this step:
Download Asqatasun tarball and extract content
Retrieve the lastest version of Asqatasun and extract it on your file system.
wget http://download.asqatasun.org/asqatasun-latest.tar.gz
tar xzf asqatasun-latest.tar.gz
cd asqatasun*
Next step
Go to Check pre-requisites.