Command option Sample:aws gamelift describe-fleet-attributes

Search command sample in the internet.It is the result.

Retrieves fleet properties, including metadata, status, andconfiguration, for one or more fleets.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/gamelift/describe-fleet-attributes.html

aws gamelift describe-fleet-attributes --region us-west-2 --fleet-id
    Protect Multiplayer Game Servers From DDoS Attacks Using Amazon GameLift | Amazon Game Tech Blog : http://aws.amazon.com/blogs/gametech/protect-multiplayer-game-servers-from-ddos-attacks-using-amazon-gamelift-2/

aws のオプション一覧