A bash function I stumbled upon online. To be defined in .bashrc or just pasted into bash before exe. download. Once function is installed, run it via: |rumble <URL>|. Tested on Ubuntu 18.04lts and confirmed working.

rumble.bashr

rumble() {
  youtube-dl --no-check-certificate -f mp4-480p/webm-480p/mp4-360p/mp4-720p/mp4-1080p $(curl -s "$1" | tr -d '\n'|awk -F "embedUrl" '{print $2}'|awk -F '"' '{print $3}');
}