download: wget -c "https://snap.stanford.edu/data/amazon/Amazon_Instant_Video.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Arts.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Automotive.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Baby.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Beauty.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Books.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Cell_Phones_&_Accessories.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Clothing_&_Accessories.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Electronics.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Gourmet_Foods.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Health.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Home_&_Kitchen.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Industrial_&_Scientific.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Jewelry.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Kindle_Store.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Movies_&_TV.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Musical_Instruments.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Music.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Office_Products.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Patio.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Pet_Supplies.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Shoes.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Software.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Sports_&_Outdoors.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Tools_&_Home_Improvement.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Toys_&_Games.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Video_Games.txt.gz" wget -c "https://snap.stanford.edu/data/amazon/Watches.txt.gz"