PSCopyBlobs_to_DiffContainer.ps1

# The below PowerShell script helps you to copy the blobs that are present in all the containers of a storage account to another container present in the same storage account. 
#The script can be modified based on the requirements.
# Note : The variable $destcontainer is used in if loop to make sure that there are no duplicate copy operation as foreach loop to retrieve all the containers will fetch the container where you copy the blobs as well.

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Connect-AzAccount
$storageAccountName = "your storage account name"
$resourceGroupName = "your resource group name"
$destcontainer = "destination container to copy blobs"
$storageAccount = Get-AzStorageAccount -ResourceGroupName $resourceGroupName -AccountName $storageAccountName 
$ctx = $storageAccount.Context

$MaxReturn = 5000

$container_continuation_token = $null

do {

    $containers = Get-AzStorageContainer -Context $ctx -MaxCount $MaxReturn -ContinuationToken $container_continuation_token

    $container_continuation_token = $null;

 
        if ($containers -ne $null)
            {
                $container_continuation_token = $containers[$containers.Count - 1].ContinuationToken
                foreach($containerctx in $containers)
                    {
                        $container = $containerctx.Name

                        Write-Verbose "Processing container : $container"
                        $blob_continuation_token = $null
                
                        do 
                            {

                                if ($container -ne $destcontainer)

                                    {
                                        $blobs = Get-AzStorageBlob -Context $ctx -Container $container -MaxCount $MaxReturn -ContinuationToken $blob_continuation_token 
                                        $blobs | Start-AzStorageBlobCopy -DestContainer $destcontainer
                                    }

                                if ($blobs -ne $null)
                                    {
                                        $blob_continuation_token = $blobs[$blobs.Count - 1].ContinuationToken
                                       
                                    }


                                if ($blob_continuation_token -ne $null)
                                    {
                                        Write-Verbose ("Blob listing continuation token = {0}" -f $blob_continuation_token.NextMarker)
                                    }

                              } while ($blob_continuation_token -ne $null)

                        Write-Verbose "Finished processing Container $container"
                        
                    }

            }
         If ($container_continuation_token -ne $null)
            {
                Write-Verbose ("Container listing continuation token = {0}" -f $container_continuation_token.NextMarker)
            }

    } while ($container_continuation_token -ne $null)