Download a video from a URL in clipboard automatically (bind to keyboard shortcut) (Mac/Linux)

download-video-from-clipboard.sh

#!/bin/bash
dir="$HOME/Videos"
opts="--add-metadata --no-mtime"

if [ -f /usr/local/bin/youtube-dl ]; then
  youtube_dl="/usr/local/bin/youtube-dl"
else
  youtube_dl="$(which youtube-dl)"
fi

if [[ "$(uname -a | awk '{print $1}')" == "Darwin" ]]; then
  paste="pbpaste"
  opts="${opts} --ffmpeg-location /usr/local/bin/ffmpeg"
else
  paste="xsel -ob"
fi

cd "${dir}"
# Try downloading normally
if ! $youtube_dl $opts -o "${dir}/%(title)s.%(ext)s" "$($paste)"; then
  # If the title is too long, use the id
  $youtube_dl $opts -o "${dir}/%(id)s.%(ext)s" "$($paste)"
fi

Requires youtube-dl and xsel on Linux.

Requires youtube-dl on Mac.