Amazon Relational Database Service
Command Line Interface Reference (API Version 2014-10-31)


The Amazon RDS Command Line Interface (RDS CLI) has been deprecated. Instead, use the AWS CLI for RDS. To learn how to download and use the AWS CLI, see AWS Command Line Interface User Guide. For RDS commands available in the AWS CLI, see AWS CLI Reference for Amazon RDS.

The AWS CLI does not currently support the DownloadCompleteDBLogFile REST API action. To download an entire log file at once, rather than in parts using the download-db-log-file-portion command, use the last published RDS CLI and the rds-download-db-logfile command.


Updates an existing DB subnet group.


rds-modify-db-subnet-group db-subnet-group-name

-d (--db-subnet-group-description) value

-s (--db-subnet-list) "value" [,value,...]]

[General Options]


Name Description Required

--db-subnet-group-name value

-n value

DB subnet group identifier.

This parameter is the default parameter and can be passed as the first value in the command and without a parameter name, for example: rds-modify-db-subnet-group my-db-subnet-group-name.

Constraints: Must contain from 1 to 255 alphanumeric characters or hyphens. First character must be a letter. Cannot end with a hyphen or contain two consecutive hyphens.



--db-subnet-group-description value

The description of the DB subnet group

Constraints: Cannot contain more than 255 characters.



--db-subnet-list value[,value, value...]

A comma-delimited list of subnets to include in this DB subnet group.

Constraints: Cannot contain more than 255 characters.



The command returns the following information:


Output values list the possible values returned by CLI commands. Not all values are returned for every call to a command. If a value is null or empty, it will not be included in the command output. For example, CLI commands to create or restore a DB instance will not return the Endpoint Address value because that value is null until the DB instance has finished being created or restored.

  • Name—The name of the DB subnet group that was modified.

  • Description—The description of the DB subnet group that was modified.

  • Status—The status of the DB subnet group that was modified.

  • Subnet Identifier—The identifier of a contained subnet.

  • Subnet Availability Zone—The Availability Zone of the contained subnet.

  • Status—The status of the contained subnet.


Modify Parameters in a Parameter Group

This example shows how to modify a DB subnet group.

PROMPT> rds-modify-db-subnet-group --db-subnet-group-name mygroup --db-subnet-group-description "My Subnet Group" --db-subnet-list subnet1,subnet2,subnet3 SUBNETGROUP Name Description Status SUBNETGROUP mygroup my group desc Active SUBNET Subnet Identifier Subnet Availability Zone Status SUBNET mytestgroup us-east-1c Active