wget -N -q -O /dev/fd/1 "$url" \
| nantoka "$url" \
| grep hogehoge \
| sort -u \
| while read tmp; do
wget -N -q --referer="$url" -O /dev/fd/1 "$tmp" \
| nantoka "$tmp"
done \
| grep '\.jpg$' \
| sort -u \
> list