$ go install github.com/tsunokawa/aws-region-list@latest
$ aws-region-list
+----------------+----------------------------+
| CODE | NAME |
+----------------+----------------------------+
| us-east-1 | US East (N. Virginia) |
| us-east-2 | US East (Ohio) |
| us-west-1 | US West (N. California) |
| us-west-2 | US West (Oregon) |
| ca-central-1 | Canada (Central) |
| eu-west-1 | EU (Ireland) |
| eu-central-1 | EU (Frankfurt) |
| eu-west-2 | EU (London) |
| ap-northeast-1 | Asia Pacific (Tokyo) |
| ap-northeast-2 | Asia Pacific (Seoul) |
| ap-northeast-3 | Asia Pacific (Osaka-Local) |
| ap-southeast-1 | Asia Pacific (Singapore) |
| ap-southeast-2 | Asia Pacific (Sydney) |
| ap-south-1 | Asia Pacific (Mumbai) |
| sa-east-1 | South America (São Paulo) |
+----------------+----------------------------+
https://github.com/olekukonko/tablewriter
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html