First, you need to claim your free API key at https://www.alphavantage.co so you can get stock price data for any stock symbol. After you get your API key, open a Terminal and run the following command (after replacing <your_api_key> with your own key) to get the daily stock data for Amazon (amzn) and Google (goog) or replace them with any symbol of your interest:
curl -o daily_amzn.csv "https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=amzn&apikey=<your_api_key>&datatype=csv&outputsize=full"
curl -o daily_goog.csv "https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=goog&apikey=<your_api_key>&datatype=csv&outputsize=full"
This will generate a daily_amzn.csv or daily_goog.csv csv file with the top line as "timestamp...
