This script will send mass SMS out to many people using the Twilio API.
Your contacts must be specified in a CSV file, where the first column is the phone number.
The message is read from a message file and sent to all contacts.
Contacts will not recieve the message twice as the script will remove duplicate numbers automatically.
Finally, a cost estimate is provided and the user is prompted to confirm (Y/n) before sending commences.
Message file: message.txt
CSV numbers file: participants.csv
You will also need to fill in your Twilio account SID, auth_token, and 'from' number.
Use responsably :)
Public domain, 2015