Wget

wget.sh

# get page and associated files so that can be viewed locally
wget -E -H -k -K -p http://<site>/<document>
# multiple pages
wget -E -H -k -K -p -np -l 1 http://<site>/level
# reference http://stackoverflow.com/questions/16780601/wget-span-host-only-for-images-stylesheets-javascript-but-not-links
# more verbose
wget \
     --recursive \
     --no-clobber \
     --page-requisites \
     --html-extension \
     --convert-links \
     --domains website.org --no-parent www.website.org/tutorials/html/