Show HN: Broadband Metering Tool (Dsum)

I'm using Airtel Broadband connection of 4Mbps with 30 GB limit per month plan (Bangalore, India). Initially when I subscribed to this plan it was sufficient for us (for me & for my roomies). It is frustrating when you realize that the net speed goes down to 256 Mbps because you’ve exceeded the 30 GB limit (download/upload total).

I needed a simple & smart tool which can tell me how much I (& also my other roomies) have download so far on our wifi connection. So, I wrote this script in one night – Broadband Meter (Codename: Dsum).