You need python3, boto3 and docopt installed to run this. You can install the dependencies with the following commands:
pip3 install boto3
pip3 install docopt
You can install python by going to https://www.python.org/ and clicking on the download link.
(Alternatively, if you have nix installed, you can run nix-shell.sh to enter a shell with the libraries temporarily installed.)
Running the program with no arguments prints a help message. example.sh demonstrates how to use the program.