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AWS Tools for Windows PowerShell
Command Reference

Synopsis

Calls the Amazon CloudWatch Logs GetLogEvents API operation.

Syntax

Get-CWLLogEvent
-LogStreamName <String>
-LogGroupName <String>
-EndTime <DateTime>
-LogGroupIdentifier <String>
-StartFromHead <Boolean>
-StartTime <DateTime>
-Unmask <Boolean>
-Limit <Int32>
-NextToken <String>
-Select <String>
-PassThru <SwitchParameter>
-ClientConfig <AmazonCloudWatchLogsConfig>

Description

Lists log events from the specified log stream. You can list all of the log events or filter using a time range. GetLogEvents is a paginated operation. Each page returned can contain up to 1 MB of log events or up to 10,000 log events. A returned page might only be partially full, or even empty. For example, if the result of a query would return 15,000 log events, the first page isn't guaranteed to have 10,000 log events even if they all fit into 1 MB. Partially full or empty pages don't necessarily mean that pagination is finished. As long as the nextBackwardToken or nextForwardToken returned is NOT equal to the nextToken that you passed into the API call, there might be more log events available. The token that you use depends on the direction you want to move in along the log stream. The returned tokens are never null. If you set startFromHead to true and you don’t include endTime in your request, you can end up in a situation where the pagination doesn't terminate. This can happen when the new log events are being added to the target log streams faster than they are being read. This situation is a good use case for the CloudWatch Logs Live Tail feature. If you are using CloudWatch cross-account observability, you can use this operation in a monitoring account and view data from the linked source accounts. For more information, see CloudWatch cross-account observability. You can specify the log group to search by using either logGroupIdentifier or logGroupName. You must include one of these two parameters, but you can't include both. If you are using log transformation, the GetLogEvents operation returns only the original versions of log events, before they were transformed. To view the transformed versions, you must use a CloudWatch Logs query.

Note: For scripts written against earlier versions of this module this cmdlet can also be invoked with the alias, Get-CWLLogEvents.

Parameters

-ClientConfig <AmazonCloudWatchLogsConfig>
Amazon.PowerShell.Cmdlets.CWL.AmazonCloudWatchLogsClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-EndTime <DateTime>
The end of the time range, expressed as the number of milliseconds after Jan 1, 1970 00:00:00 UTC. Events with a timestamp equal to or later than this time are not included.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Limit <Int32>
The maximum number of log events returned. If you don't specify a limit, the default is as many log events as can fit in a response size of 1 MB (up to 10,000 log events).
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-LogGroupIdentifier <String>
Specify either the name or ARN of the log group to view events from. If the log group is in a source account and you are using a monitoring account, you must use the log group ARN. You must include either logGroupIdentifier or logGroupName, but not both.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-LogGroupName <String>
The name of the log group. You must include either logGroupIdentifier or logGroupName, but not both.
Required?False
Position?2
Accept pipeline input?True (ByPropertyName)
-LogStreamName <String>
The name of the log stream.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
-NextToken <String>
The token for the next set of items to return. (You received this token from a previous call.)
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PassThru <SwitchParameter>
Changes the cmdlet behavior to return the value passed to the LogStreamName parameter. The -PassThru parameter is deprecated, use -Select '^LogStreamName' instead. This parameter will be removed in a future version.
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.CloudWatchLogs.Model.GetLogEventsResponse). Specifying the name of a property of type Amazon.CloudWatchLogs.Model.GetLogEventsResponse 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)
-StartFromHead <Boolean>
If the value is true, the earliest log events are returned first. If the value is false, the latest log events are returned first. The default value is false.If you are using a previous nextForwardToken value as the nextToken in this operation, you must specify true for startFromHead.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-StartTime <DateTime>
The start of the time range, expressed as the number of milliseconds after Jan 1, 1970 00:00:00 UTC. Events with a timestamp equal to this time or later than this time are included. Events with a timestamp earlier than this time are not included.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Unmask <Boolean>
Specify true to display the log event fields with all sensitive data unmasked and visible. The default is false.To use this operation with this parameter, you must be signed into an account with the logs:Unmask permission.
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.CloudWatchLogs.Model.GetLogEventsResponse
This cmdlet returns an Amazon.CloudWatchLogs.Model.GetLogEventsResponse object containing multiple properties.
Developer Guide
Service API Reference
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 4.1.790.0