#!/bin/bash

wget "https://blogs.msdn.microsoft.com/mssmallbiz/2017/07/11/largest-free-microsoft-ebook-giveaway-im-giving-away-millions-of-free-microsoft-ebooks-again-including-windows-10-office-365-office-2016-power-bi-azure-windows-8-1-office-2013-sharepo/"

my_title_str='<td valign=".*" width=".*"><font size=".*" face=".*">\([^<]*\)</font></td>'
my_address_str='<td width=".*"><a href="\(http://[^"]*\)" target="_blank"><font size=".*" face=".*">PDF</font></a>.*'

files=$(grep -B 1 "$my_address_str" index.html)
while true
do
  read line1 || break
  title=$(echo "$line1" | sed 's,'"$my_title_str"',\1,')
  read line2 || break
  address=$(echo "$line2" | sed 's,'"$my_address_str"',\1,')
  echo "$title"
  echo "$address"
  wget "$address" -O "$title"".pdf"
  read line3 || break #--
done <<< "$(echo -e "$files")"