Download a book from National Diet Library

DownloadNDL.sh

#!/bin/bash
for i in {1..174}  # Change number of pages.
do
   # Change URL to that of the book.
   wget "http://dl.ndl.go.jp/view/jpegOutput?itemId=info%3Andljp%2Fpid%2F971654&contentNo=$i&outputScale=1" -O $i.jpeg
   # They kindly ask for waiting 30s between requests. Don't be an ass and do so.
   sleep 30
done