Wait until a particular condition is satisfied.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/elbv2/wait.html
| aws elbv2 wait target-deregistered --target-group-arn |
| #!/bin/bash source Shared.sh aws elbv2 deregister-targets --target-group-arn $t - Pastebin.com : http://pastebin.com/vyBzzKqt |