Table Of Contents


User Guide

First time using the AWS CLI? See the User Guide for help getting started.

[ aws . ssm ]



Get information about a parameter.


Request results are returned on a best-effort basis. If you specify MaxResults in the request, the response includes information up to the limit specified. The number of items returned, however, can be between zero and the value of MaxResults . If the service reaches an internal limit while processing the results, it stops the operation and returns the matching values up to that point and a NextToken . You can specify the NextToken in a subsequent call to get the next set of results.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

describe-parameters is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: Parameters


[--filters <value>]
[--parameter-filters <value>]
[--cli-input-json <value>]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]


--filters (list)

This data type is deprecated. Instead, use ParameterFilters .

Shorthand Syntax:

Key=string,Values=string,string ...

JSON Syntax:

    "Key": "Name"|"Type"|"KeyId",
    "Values": ["string", ...]

--parameter-filters (list)

Filters to limit the request results.

Shorthand Syntax:

Key=string,Option=string,Values=string,string ...

JSON Syntax:

    "Key": "string",
    "Option": "string",
    "Values": ["string", ...]

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--page-size (integer)

The size of each page to get in the AWS service call. This does not affect the number of items returned in the command's output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--max-items (integer)

The total number of items to return in the command's output. If the total number of items available is more than the value specified, a NextToken is provided in the command's output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.


To list all Parameters

This example lists all parameters.


aws ssm describe-parameters


  "Parameters": [
          "LastModifiedUser": "arn:aws:iam::809632081692:user/admin",
          "LastModifiedDate": 1487880325.324,
          "Type": "String",
          "Name": "welcome"

To list all Parameters matching specific metadata

This example lists all parameters matching a filter.


aws ssm describe-parameters --filters "Key=Name,Values=helloWorld"


Parameters -> (list)

Parameters returned by the request.


Metadata includes information like the ARN of the last user and the date/time the parameter was last used.

Name -> (string)

The parameter name.

Type -> (string)

The type of parameter. Valid parameter types include the following: String, String list, Secure string.

KeyId -> (string)

The ID of the query key used for this parameter.

LastModifiedDate -> (timestamp)

Date the parameter was last changed or updated.

LastModifiedUser -> (string)

Amazon Resource Name (ARN) of the AWS user who last changed the parameter.

Description -> (string)

Description of the parameter actions.

AllowedPattern -> (string)

A parameter name can include only the following letters and symbols.


Version -> (long)

The parameter version.

Tier -> (string)

The parameter tier.

Policies -> (list)

A list of policies associated with a parameter.


One or more policies assigned to a parameter.

PolicyText -> (string)

The JSON text of the policy.

PolicyType -> (string)

The type of policy. Parameter Store supports the following policy types: Expiration, ExpirationNotification, and NoChangeNotification.

PolicyStatus -> (string)

The status of the policy. Policies report the following statuses: Pending (the policy has not been enforced or applied yet), Finished (the policy was applied), Failed (the policy was not applied), or InProgress (the policy is being applied now).

NextToken -> (string)

The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.