Python function(s) and standalone script, and utility Bash and PowerShell scripts to download shared Google Drive files by ID... and no additional dependencies!

gdrivedown.ps1

#!/usr/bin/env pwsh
python -O gdrivedown.py $args

gdrivedown.py

#!/usr/bin/env python3

import requests


def download_gdrive(gdrive_id, fname_save):
    # From: https://github.com/RobustBench/robustbench/blob/1a9c24fa69363d8130f8cdf67ca3ce8a7c481aa8/robustbench/utils.py#L34
    def get_confirm_token(response):
        for key, value in response.cookies.items():
            if key.startswith("download_warning"):
                return value

        return None

    def save_response_content(response, fname_save):
        CHUNK_SIZE = 32768

        with open(fname_save, "wb") as f:
            for chunk in response.iter_content(CHUNK_SIZE):
                if chunk:  # filter out keep-alive new chunks
                    f.write(chunk)

    print(f"Download started: path={fname_save} (gdrive_id={gdrive_id})")

    url_base = "https://docs.google.com/uc?export=download&confirm=t"
    session = requests.Session()

    response = session.get(url_base, params={"id": gdrive_id}, stream=True)
    token = get_confirm_token(response)

    if token:
        params = {"id": gdrive_id, "confirm": token}
        response = session.get(url_base, params=params, stream=True)

    save_response_content(response, fname_save)
    session.close()
    print(f"Download finished: path={fname_save} (gdrive_id={gdrive_id})")


if __name__ == "__main__":
    import sys

    if len(sys.argv) not in (2, 3):
        print("Usage: python gdrivedown.py <gdrive_id> [<fname_save>]")
        sys.exit(1)

    if len(sys.argv) == 2:
        args_fname_save = sys.argv[1]
    else:
        args_fname_save = sys.argv[2]

    args_gdrive_id = sys.argv[1]

    download_gdrive(args_gdrive_id, args_fname_save)

gdrivedown.sh

#!/usr/bin/env bash
python -O gdrivedown.py $@