How to Download Blob Contents from an Azure Storage Account using PowerShell

In this blog, you will see how to download blob contents from an Azure Storage Account using PowerShell.

Introduction 

In this blog, you will see how to download blob contents from an Azure Storage Account using PowerShell.

Prerequisites:

Install Azure PowerShell Module to run the script.

PowerShell Script:

Open Notepad and paste the following script. Save the file as script.ps1.

################# Azure Blob Storage - PowerShell ####################

## Input Parameters
$resourceGroupName="azpractice"
$storageAccName="azstorageacc1122020"
$downloadPath=".\Download"
$downloadLocation="Download"

## Connect to Azure Account
Connect-AzAccount

## Function to dlownload all blob contents
Function DownloadBlobContents
{
    Write-Host -ForegroundColor Green "Download blob contents from storage container.."
    ## Get the storage account
    $storageAcc=Get-AzStorageAccount -ResourceGroupName $resourceGroupName -Name $storageAccName
    ## Get the storage account context
    $ctx=$storageAcc.Context
    ## Get all the containers
    $containers=Get-AzStorageContainer  -Context $ctx
    ## Loop through the containers
    foreach($container in $containers)
    {
        ## check if folder exists
        $folderPath=$downloadPath+"\"+$container.Name
        $destination=$downloadLocation+"\"+$container.Name
        $folderExists=Test-Path -Path $folderPath
        if($folderExists)
        {
            Write-Host -ForegroundColor Magenta $container.Name "- folder exists"
            ## Get the blob contents from the container
            $blobContents=Get-AzStorageBlob -Container $container.Name  -Context $ctx
            foreach($blobContent in $blobContents)
            {
                ## Download the blob content
                Get-AzStorageBlobContent -Container $container.Name  -Context $ctx -Blob $blobContent.Name -Destination $destination -Force
            }
        }
        else
        {
            Write-Host -ForegroundColor Magenta $container.Name "- folder does not exist"
            ## Create the new folder
            New-Item -ItemType Directory -Path $folderPath
            ## Get the blob contents from the container
            $blobContents=Get-AzStorageBlob -Container $container.Name  -Context $ctx
            foreach($blobContent in $blobContents)
            {
                ## Download the blob content
                Get-AzStorageBlobContent -Container $container.Name  -Context $ctx -Blob $blobContent.Name -Destination $destination -Force
            }
        }
    }
}

DownloadBlobContents

## Disconnect from Azure Account
Disconnect-AzAccount

Open a Windows PowerShell window and navigate to the location where the script file was saved.

Run the following command.

.\script.ps1

Result:

All the blob contents from the Azure Storage account have downloaded successfully.

Note: Folders will be created with the same name as the container name. If the folder exists, documents are downloaded in the respective folder. 

 

 

 

 

Reference:

https://docs.microsoft.com/en-us/powershell/module/az.storage/get-azstorageblobcontent?view=azps-3.3.0

Summary:

In this blog, you saw how to download blob contents from an Azure Storage Account using PowerShell.