para_yt.sh

#!/bin/bash
set -e
set -u

yt_list="$1"
jbs="$2"

if [ ! -f "$yt_list" ]; then
  echo "File $yt_list is missing"
  exit 1
fi

cat $yt_list | parallel --jobs $jbs 'youtube-dl -ciw --restrict-filenames -o "%(upload_date)s-%(id)s-%(title)s.%(ext)s" --add-metadata --write-description --write-annotations --write-info-json --all-subs --write-thumbnail -f "bestvideo[height<=720]+bestaudio/best[height<=720]" --merge-output-format "mkv" {}'