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.

  1. ################# Azure Blob Storage - PowerShell ####################
  3. ## Input Parameters
  4. $resourceGroupName="azpractice"
  5. $storageAccName="azstorageacc1122020"
  6. $downloadPath=".\Download"
  7. $downloadLocation="Download"
  9. ## Connect to Azure Account
  10. Connect-AzAccount
  12. ## Function to dlownload all blob contents
  13. Function DownloadBlobContents
  14. {
  15. Write-Host -ForegroundColor Green "Download blob contents from storage container.."
  16. ## Get the storage account
  17. $storageAcc=Get-AzStorageAccount -ResourceGroupName $resourceGroupName -Name $storageAccName
  18. ## Get the storage account context
  19. $ctx=$storageAcc.Context
  20. ## Get all the containers
  21. $containers=Get-AzStorageContainer -Context $ctx
  22. ## Loop through the containers
  23. foreach($container in $containers)
  24. {
  25. ## check if folder exists
  26. $folderPath=$downloadPath+"\"+$container.Name
  27. $destination=$downloadLocation+"\"+$container.Name
  28. $folderExists=Test-Path -Path $folderPath
  29. if($folderExists)
  30. {
  31. Write-Host -ForegroundColor Magenta $container.Name "- folder exists"
  32. ## Get the blob contents from the container
  33. $blobContents=Get-AzStorageBlob -Container $container.Name -Context $ctx
  34. foreach($blobContent in $blobContents)
  35. {
  36. ## Download the blob content
  37. Get-AzStorageBlobContent -Container $container.Name -Context $ctx -Blob $blobContent.Name -Destination $destination -Force
  38. }
  39. }
  40. else
  41. {
  42. Write-Host -ForegroundColor Magenta $container.Name "- folder does not exist"
  43. ## Create the new folder
  44. New-Item -ItemType Directory -Path $folderPath
  45. ## Get the blob contents from the container
  46. $blobContents=Get-AzStorageBlob -Container $container.Name -Context $ctx
  47. foreach($blobContent in $blobContents)
  48. {
  49. ## Download the blob content
  50. Get-AzStorageBlobContent -Container $container.Name -Context $ctx -Blob $blobContent.Name -Destination $destination -Force
  51. }
  52. }
  53. }
  54. }
  56. DownloadBlobContents
  58. ## Disconnect from Azure Account
  59. 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.