Use RemoveUserFromGroup with an Amazon SDK or CLI

    /// <summary>
    /// Remove a user from an IAM group.
    /// </summary>
    /// <param name="userName">The username of the user to remove.</param>
    /// <param name="groupName">The name of the IAM group to remove the user from.</param>
    /// <returns>A Boolean value indicating the success of the action.</returns>
    public async Task<bool> RemoveUserFromGroupAsync(string userName, string groupName)
    {
        // Remove the user from the group.
        var removeUserRequest = new RemoveUserFromGroupRequest()
        {
            UserName = userName,
            GroupName = groupName,
        };

        var response = await _IAMService.RemoveUserFromGroupAsync(removeUserRequest);
        return response.HttpStatusCode == HttpStatusCode.OK;
    }

To remove a user from an IAM group

The following remove-user-from-group command removes the user named Bob from the IAM group named Admins.

aws iam remove-user-from-group \
    --user-name Bob \
    --group-name Admins

This command produces no output.

For more information, see Adding and removing users in an IAM user group in the Amazon IAM User Guide.

Example 1: This example removes the IAM user Bob from the group Testers.

Remove-IAMUserFromGroup -GroupName Testers -UserName Bob

Example 2: This example finds any groups of which IAM user Theresa is a member, and then removes Theresa from those groups.

$groups = Get-IAMGroupForUser -UserName Theresa 
foreach ($group in $groups) { Remove-IAMUserFromGroup -GroupName $group.GroupName -UserName Theresa -Force }

Example 3: This example shows an alternate way of removing the IAM user Bob from the Testers group.

Get-IAMGroupForUser -UserName Bob | Remove-IAMUserFromGroup -UserName Bob -GroupName Testers -Force