1.0.0
Tagging this script as 1.0.0 as we're going to merge the Linux and Darwin scripts into one unified script which will become a version 2.0.0.
Installation
Download the appropriate version for Linux or Mac with this command
curl -O https://raw.githubusercontent.com/hypriot/flash/1.0.0/$(uname -s)/flash
chmod +x flash
sudo mv flash /usr/local/bin/flash