The following shell command was used to suss out and download all .pptx URLs on the main page of the GOES-R website: curl -s http://www.goes-r.gov/users/2015-OCONUS.html \ | grep '\.pptx' \ | sed 's/.*href="\([^"]*\)".*/\1/' \ | sed 's/ /\\ /g' \ | uniq \ | awk '{print "http://www.goes-r.gov" $0}' \ | xargs wget