Grab the Seth Rogen TTC etiquette announcement WAVs and convert them to appropriately tagged and named FLAC files

get-seth-rogen-TTC-announcements.sh

#!/bin/bash

# http://twitter.com/bradTTC/status/1024344192061853696
# blame gnomon
# prereqs: curl, awk, flac, metaflac, strings, grep

declare    src='https://beta.ttc.ca/about-the-ttc/public-service-announcements'
declare    alt='http://www.ttc.ca/sethrogen/index.jsp'
declare -i i=0 j=1

for url in $( \
  curl -sL "$src" | \
  awk '/(wav|jpg)/ && match($0, /(href|src)="https:\/\/[^"]+"/) {
  	url=substr($0, RSTART, RLENGTH)
	sub(/"$/,"",url)
	sub(/^[^"]+"/,"",url)
	print url
  }' \
) ; do
	((i++))
	curl -vLOJ -D ".headers.${i}" --stderr ".log.${i}" "$url" &
done ; wait

i=1
while [[ -e .headers.${i} ]] ; do
	((i++))
	fn=$(grep -soE '"[^.]+\.wav"' ".headers.$((i-1))") || continue
	fn=${fn##\"}
	fn=${fn%%\"}
	flac -8 -e -V \
	  --tag="TITLE=${fn%%.wav}" \
	  --tag="TRACKNUMBER=$j" \
	  --tag="DATE=$(strings "$fn" | grep 2018)" \
	  --output-prefix="$(printf '%02d' "$j"). " \
	  "$fn"
	((j++))
done

metaflac \
  --set-tag "DESCRIPTION=$src / $alt" \
  --set-tag 'TOTALTRACKS=12' \
  --import-picture-from='SR-IMG_0789.jpg' \
  --add-replay-gain \
  *flac