Amazon EC2 Systems Manager
User Guide

Installing PowerShell Modules with Systems Manager Run Command

You can use the AWS-InstallPowerShellModule document to install PowerShell modules on EC2 instances. You can also specify PowerShell commands to run after the module has been installed. For example, you could install the EZOut module for flexible PowerShell formatting and then run a command to install a Windows feature like XPS Viewer to view files you create with EZOut.


This procedure does not include information about how to configure Run Command for Amazon SNS notifications. To learn more about how to execute commands that return notifications, see Configuring Amazon SNS Notifications for Run Command.

To install PowerShell modules using Run Command

  1. Open the Amazon EC2 console at

  2. In the navigation pane, choose Run Command.

  3. Choose Run a command.

  4. For Command document, choose AWS-InstallPowerShellModule.

  5. For Target instances, choose the instances where you want the command to run. If you do not see an instance in this list, it might not be configured properly for Run Command. For more information, see Systems Manager Prerequisites.

  6. (Optional) For Working Directory, type the path to the folder on your EC2 instances where you want to run the command.

  7. For Source, type either the URL or the path to .zip file. For example:

    • (URL)

    • file://c:\temp\ (file)

  8. (Optional) For Source Hash, type an SHA256 hash for the .zip file.

  9. (Optional) For Commands, type a command. Choose the plus sign to add additional commands.

  10. (Optional) For Execution Timeout, type the number of seconds the EC2Config service or SSM agent will attempt to run the command before it times out and fails.

  11. (Optional) For Comment, we recommend providing information that will help you identify this command in your list of commands.

  12. For Timeout (seconds), type the number of seconds that Run Command should attempt to reach an instance before it is considered unreachable and the command execution fails. The minimum is 30 seconds, the maximum is 30 days, and the default is 10 minutes.

  13. For S3 bucket, type the name of the S3 bucket for the command output.


    The Run Command Output page in the Amazon EC2 console truncates output after 2500 characters. Configure an Amazon S3 bucket before executing commands using Run Command. If your command output is longer than 2500 characters, you can view the full output in your Amazon S3 bucket. For more information, see Create a Bucket.

  14. For S3 key prefix, type the name of a subfolder in the S3 bucket. A subfolder can help you organize Run Command output if you execute multiple commands against multiple instances.

For information about how to run commands using Windows PowerShell, see Systems Manager Run Command Walkthrough Using the AWS Tools for Windows PowerShell or the AWS Tools for Windows PowerShell Reference. For information about how to run commands using the AWS CLI, see the SSM CLI Reference.

Canceling a Command

You can attempt to cancel a command as long as the service shows that it is in either a Pending or Executing state. However, even if a command is still in one of these states, we cannot guarantee that the command will be terminated and the underlying process stopped.

To cancel a command using the console

  1. In the navigation pane, choose Run Command.

  2. Select the command invocation that you want to cancel.

  3. Choose Actions, Cancel Command.

To cancel a command using the AWS CLI

Use the following command.

aws ssm cancel-command --command-id "command ID" --instance-ids "instance ID"

For information about the status of a cancelled command, see Setting Up Events and Notifications.

View Command Output

Use the following procedure to view the results of command execution in the EC2 console.

To view command output

  1. In the Amazon EC2 console, select a command in the list.

  2. Choose the Output tab.

  3. Choose View Output.

  4. The command output page shows the results of your command execution.