The MacPorts installation that I had on Yosemite doesn\'t work on the El Capitan since it isn\'t supported yet. I want to remove the Port installation here but I\'m not able
wget is fetching a bz2 file but unzip instructions are for gz. Try the following instead
tar xjvf MacPorts-2.3.3.tar.bz2
The rest worked fine on El Capitan.
Thanks.