#!/bin/sh set -x for i in $(seq 0 23) do yt-dlp "https://online.gib-base.de/TK/adventskalender22/landing/pages/info_module_de.php?id=${i}" f="$(ls info_module_de*)" e="${f##*.}" [ ! -z "$f" ] && mv "$f" tk-adventskalender-day$i.$e done