Rename html files based on title tag

rename.sh

#!/bin/bash

# Rename the ouput html file from redditPostArchiver with the reddit thread title. 
# https://github.com/sJohnsonStoever/redditPostArchiver


for f in *.html;
   do
   title=$( awk 'BEGIN{IGNORECASE=1;FS="<title>|</title>";RS=EOF} {print $2}' "$f" )
   mv -i "$f" "${title//[^a-zA-Z0-9\._\- ]}_$f"
done