Update cheatsheets

aws-rds

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# aws rds
+
+> CLI for AWS Relational Database Service.
+> Create and manage relational databases.
+> More information: <https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/index.html>.
+
+- Display help for a specific RDS subcommand:
+
+`aws rds {{subcommand}} help`
+
+- Stop instance:
+
+`aws rds stop-db-instance --db-instance-identifier {{instance_identifier}}`
+
+- Start instance:
+
+`aws rds start-db-instance --db-instance-identifier {{instance_identifier}}`
+
+- Modify an RDS instance:
+
+`aws rds modify-db-instance --db-instance-identifier {{instance_identifier}} {{parameters}} --apply-immediately`
+
+- Apply updates to an RDS instance:
+
+`aws rds apply-pending-maintenance-action --resource-identifier {{database_arn}} --apply-action {{system-update}} --opt-in-type {{immediate}}`
+
+- Change an instance identifier:
+
+`aws rds modify-db-instance --db-instance-identifier {{old_instance_identifier}} --new-db-instance-identifier {{new_instance_identifier}}`
+
+- Reboot an instance:
+
+`aws rds reboot-db-instance --db-instance-identifier {{instance_identifier}}`
+
+- Delete an instance:
+
+`aws rds delete-db-instance --db-instance-identifier {{instance_identifier}} --final-db-snapshot-identifier {{snapshot_identifier}} --delete-automated-backups`