Downloads all of the available WWDC2014 videos (assuming you have access to them), skipping any that are already downloaded and resuming any that aren't. Requires wget, which can be installed via homebrew. Original credit goes to Krzysztof: https://twitter.com/merowing_/status/474071685826883584. You'll need to be running wget 1.15 or later for …

download-wwdc-vids.sh

echo "Downloading HD Videos…"

curl https://developer.apple.com/videos/wwdc/2014/ | grep -iIoh 'http.*._hd_.*dl=1">HD' | sed -e 's/\?dl=1">HD//g' | xargs -n1 wget -N -c

echo "Downloading SD Videos…"

curl https://developer.apple.com/videos/wwdc/2014/ | grep -iIoh 'http.*._sd_.*dl=1">SD' | sed -e 's/\?dl=1">SD//g' | xargs -n1 wget -N -c

echo "Downloading PDFs…"

curl https://developer.apple.com/videos/wwdc/2014/ | grep -iIohE 'http://[^/]+/videos/wwdc/2014/[^\.]+\.pdf\?dl=1">PDF' | sed -e 's/\?dl=1">PDF//g' | xargs -n1 wget -N -c