A simple script to return the blobs in a container, you will need to be logged into an Azure subscription with Login-AzureRMAccount before this will return anything

Get-CloudBlob.ps1

param
(
    [Parameter(Mandatory=$true,Position=0)]
    [string]$ResourceGroupName,
    [Parameter(Mandatory=$true,Position=1)]
    [string]$StorageAccountName,
    [Parameter(Mandatory=$true,Position=2)]
    [string]$Container
)

try
{
    $ErrorActionPreference = 'Stop';
    $Error.Clear();
    
    $ResourceGroup = Get-AzureRmResourceGroup -ResourceGroupName $ResourceGroupName;
    $StorageAccount = Get-AzureRmStorageAccount -ResourceGroupName $ResourceGroup.ResourceGroupName -StorageAccountName $StorageAccountName;
    $StorageAccountContainer = Get-AzureStorageContainer -Name $Container -Context $StorageAccount.Context;
    
    $StorageAccountContainer.CloudBlobContainer.ListBlobs();
}
catch
{
    throw $_;
}