ranking TOP10のやつ全部ダウンロードするスクリプト
curl, pup, jqが必要

curl -s 'https://www.pixiv.net/ranking.php' ¥
| pup 'a.work' attr{href} ¥
| head -10 ¥
| sed -E 's/¥/artworks¥/([0-9]+)/¥1/' ¥
| xargs -I {} curl -s https://www.pixiv.net/ajax/illust/{}/pages ¥
| jq '.body[].urls.original' ¥
| xargs -I {} curl -# {} -H 'Referer: https://www.pixiv.net/en/artworks/' -O -w "%{url_effective}¥n"