AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the Amazon Simple Storage Service (S3) HeadBucket API operation.

Syntax

Get-S3HeadBucket
-BucketName <String>
-ExpectedBucketOwner <String>
-Select <String>
-ClientConfig <AmazonS3Config>
-UseAccelerateEndpoint <SwitchParameter>
-UseDualstackEndpoint <SwitchParameter>
-ForcePathStyleAddressing <Boolean>

Description

You can use this operation to determine if a bucket exists and if you have permission to access it. The action returns a 200 OK if the bucket exists and you have permission to access it. If the bucket does not exist or you do not have permission to access it, the HEAD request returns a generic 400 Bad Request, 403 Forbidden or 404 Not Found code. A message body is not included, so you cannot determine the exception beyond these HTTP response codes.
Authentication and authorization
General purpose buckets - Request to public buckets that grant the s3:ListBucket permission publicly do not need to be signed. All other HeadBucket requests must be authenticated and signed by using IAM credentials (access key ID and secret access key for the IAM identities). All headers with the x-amz- prefix, including x-amz-copy-source, must be signed. For more information, see REST Authentication. Directory buckets - You must use IAM credentials to authenticate and authorize your access to the HeadBucket API operation, instead of using the temporary security credentials through the CreateSession API operation. Amazon Web Services CLI or SDKs handles authentication and authorization on your behalf.
Permissions
HTTP Host header syntax
Directory buckets - The HTTP Host header syntax is Bucket-name.s3express-zone-id.region-code.amazonaws.com. You must make requests for this API operation to the Zonal endpoint. These endpoints support virtual-hosted-style requests in the format https://bucket-name.s3express-zone-id.region-code.amazonaws.com. Path-style requests are not supported. For more information about endpoints in Availability Zones, see Regional and Zonal endpoints for directory buckets in Availability Zones in the Amazon S3 User Guide. For more information about endpoints in Local Zones, see Concepts for directory buckets in Local Zones in the Amazon S3 User Guide.

Parameters

-BucketName <String>
The bucket name.Directory buckets - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format Bucket-name.s3express-zone-id.region-code.amazonaws.com. Path-style requests are not supported. Directory bucket names must be unique in the chosen Zone (Availability Zone or Local Zone). Bucket names must follow the format bucket-base-name--zone-id--x-s3 (for example, amzn-s3-demo-bucket--usw2-az1--x-s3). For information about bucket naming restrictions, see Directory bucket naming rules in the Amazon S3 User Guide.Access points - When you use this action with an access point for general purpose buckets, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. When you use this action with an access point for directory buckets, you must provide the access point name in place of the bucket name. When using the access point ARN, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName-AccountId.s3-accesspoint.Region.amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide.Object Lambda access points - When you use this API operation with an Object Lambda access point, provide the alias of the Object Lambda access point in place of the bucket name. If the Object Lambda access point alias in a request is not valid, the error code InvalidAccessPointAliasError is returned. For more information about InvalidAccessPointAliasError, see List of Error Codes.Object Lambda access points are not supported by directory buckets.S3 on Outposts - When you use this action with S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com. When you use this action with S3 on Outposts, the destination bucket must be the Outposts access point ARN or the access point alias. For more information about S3 on Outposts, see What is S3 on Outposts? in the Amazon S3 User Guide.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
-ClientConfig <AmazonS3Config>
Amazon.PowerShell.Cmdlets.S3.AmazonS3ClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ExpectedBucketOwner <String>
The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code 403 Forbidden (access denied).
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ForcePathStyleAddressing <Boolean>
S3 requests can be performed using one of two URI styles: Virtual or Path. When using Virtual style, the bucket is included as part of the hostname. When using Path style the bucket is included as part of the URI path. The default value is $true when the EndpointUrl parameter is specified, $false otherwise.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is '*'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.S3.Model.HeadBucketResponse). Specifying the name of a property of type Amazon.S3.Model.HeadBucketResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-UseAccelerateEndpoint <SwitchParameter>
Enables S3 accelerate by sending requests to the accelerate endpoint instead of the regular region endpoint. To use this feature, the bucket name must be DNS compliant and must not contain periods (.).
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-UseDualstackEndpoint <SwitchParameter>
Configures the request to Amazon S3 to use the dualstack endpoint for a region. S3 supports dualstack endpoints which return both IPv6 and IPv4 values. The dualstack mode of Amazon S3 cannot be used with accelerate mode.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

Amazon.S3.Model.HeadBucketResponse
This cmdlet returns an Amazon.S3.Model.HeadBucketResponse object containing multiple properties.

Examples

Example 1

Get-S3HeadBucket -BucketName amzn-s3-demo-bucket

AccessPointAlias   : False
BucketArn          :
BucketLocationName : 
BucketLocationType : 
BucketRegion       : us-east-2
ResponseMetadata   : Amazon.Runtime.ResponseMetadata
ContentLength      : 0
HttpStatusCode     : OK
This command returns the output with HTTP status code 200 OK for existing bucket when user has permission to access it. BucketArn parameter is only supported for S3 directory buckets.

Example 2

Get-S3HeadBucket -BucketName amzn-s3-non-existing-bucket

Get-S3HeadBucket: Error making request with Error Code NotFound and Http Status Code NotFound. No further error information was returned by the service.
This command throws error with HTTP status code NotFound for non-existent bucket.

Example 3

Get-S3HeadBucket -BucketName amzn-s3-no-access-bucket

Get-S3HeadBucket: Error making request with Error Code Forbidden and Http Status Code Forbidden. No further error information was returned by the service.
This command throws error with HTTP status code Forbidden for existing bucket where user does not have permission to access it.
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Service API Reference
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z