Scrape the highest rated MP3 from Forvo.com for a given word

forvo_scraper.sh

#!/bin/bash
# Forvo scraper
language=${FORVO_LANG:-fr}
BASEURL="http://forvo.com/search/"
AUDIOURL="http://audio.forvo.com/audios/mp3/"
word=$1

if [[ -z $word ]]; then
  echo "usage: "
  echo "FORVO_LANG=languagecode ./forvo_scraper.sh myword"
  echo "for example: "
  echo "FORVO_LANG=fr ./forvo_scraper.sh chien"
  echo "will save a single file named 'chien.mp3' in the current folder"
  exit
fi

url="${BASEURL}${word}/${language}"
playurl="${BASEURL}${word}/#${language}"
file="$(wget -qO- "${url}" | grep 'onclick="Play(' | head -1 | sed "s/^.*Play(.*,'\([^']*\)','[^']*',.*$/\1/g" | base64 -d)"
wget -qO"${word}.mp3" "${AUDIOURL}${file}"

This is great, thank you! It looks like you can get multi-word phrases by replacing the spaces with underscores, perhaps this script could do that automatically?