====== Download a book from e.g. arg org ======

the book is a set of images, numbered in order of pages

<code bash>
#!/bin/bash
for i in {1..190}; #replace the second number with the actual number of pages 
do
    wget http://link.to.an.image.net/x1000-$i.jpg #replace the url with the actual book 
done
convert x1000* book.pdf
</code>