$ gem install mdg

$ mdg -h
Usage: mdg [-h|--help] [-v|--version] <command> [<args]
-v,  --version                    Show program version
-h,  --help                       Show this message

mdg Available Commands:
create -c content -t time                Create Done with time
update id -t time                        Update total time done
list                                     Done List
delete id                                Delete Done
server -p port                           Start http server process