git clone https://github.com/amalrajan/youtube-downloader.git
cd youtube-downloader
pip install -r requirements.txt
python main.py

usage: main.py [-h] [-m] [-o OUTPUT] type url

positional arguments:
  type                   single/multiple/playlist
  url                    link to the original video on YouTube, or 
                         complete path to the text file

optional arguments:
  -h, --help             show this message and exit
  -m, --maxquality       download video(s) in the best quality available
  -a, --audio            audio only mode
  -o OUTPUT, --output OUTPUT
                         download location