How I can download PDFs of a website by using only the root domain name?
Solution 1:
The following command should work:
wget -r -A "*.pdf" "http://yourWebsite.net/"
See man wget for more info.
Solution 2:
In case the above doesn't work try this: (replace the URL)
lynx -listonly -dump http://www.philipkdickfans.com/resources/journals/pkd-otaku/ | grep pdf | awk '/^[ ]*[1-9][0-9]*\./{sub("^ [^.]*.[ ]*","",$0); print;}' | xargs -L1 -I {} wget {}
you might need to install lynx:
sudo apt install lynx