PowerShell Code to Get the blob content to local

Question

PowerShell Code to Get the blob content to local.

Explanation of scenario below-

I have code written me on how to download the blob folder level to the local & its working. But my main focus is as below suggest me how this can be achieved. storage account has container --folder1,2etc.. folder1 inside that will have dir1, 2 etc.., now i want to get the content of the particular dir1 from folder 1 using PS.

The already working code on folder level is below for reference - guide me on the next level.

Connect-AzAccount -Subscription "XXXX"

$container_name = 'A/B/C' 
$destination_path = "C:\Users\Anirudh\Documents\upload\"  
$storage_account = New-AzStorageContext -StorageAccountKey "XXXXX" -StorageAccountName "XXXXX"
$blobs = Get-AzStorageBlob -Container $container_name -Context $storage_account  
foreach($blob in $blobs) {  
    New-Item -ItemType Directory -Force -Path $destination_path  
    Get-AzStorageBlobContent -Container $container_name -Blob $blob.Name -Destination $destination_path -Context $storage_account  
}

Thanks.

Gaurav Mantri · Accepted Answer · 2020-03-20 07:31:17Z

1

If you want to download the blobs from a particular subfolder in a blob container, then you will need to specify the path to that subfolder in -Prefix parameter to Get-AzStorageBlob Cmdlet.

Here's the sample code I wrote which download blobs from A/B/C folder in test blob container in development storage account.

$container_name = "test" 
$destination_path = "D:\temp\"  
$storage_account = New-AzStorageContext -ConnectionString "UseDevelopmentStorage=true"
$path = "A/B/C" # This is the path of the sub folder inside the blob container.
$blobs = Get-AzStorageBlob -Container $container_name -Prefix $path -Context $storage_account  
foreach($blob in $blobs) {  
    New-Item -ItemType Directory -Force -Path $destination_path  
    Get-AzStorageBlobContent -Container $container_name -Blob $blob.Name -Destination $destination_path -Context $storage_account  
}

answered Mar 20, 2020 at 7:31

Gaurav Mantri

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7 Comments

anirudh bragadeesan Over a year ago

Yeah really Thanks I just saw your code I am really happy Let me try fully and get back to you in case if I have doubts...

anirudh bragadeesan Over a year ago

@ Gaurav Mantri - Really great thanks on that always 100% working code tested. Can just share the idea, on how the path can be parameterised.

Gaurav Mantri Over a year ago

Can you please explain what you mean by path can be parameterised?

anirudh bragadeesan Over a year ago

Ok I can just brief out the scenario in short here so that you can share if any code in PS. The $path which is now looking for specific subfolder level and not azure blob content,great but the same till some extent $path = A/B/C till C it will be constant but after C subfolder it will look for dynamic download of contents/parameterization after C, it will have folder with 'daily dates' inside which it can have only 1 more subfolder. Now this - till C it should remain constant and then the PS code should be able to dwnload any date subfolder values, thereafter... Hope you got it ..

anirudh bragadeesan Over a year ago

Old things are still got resolved by myself. Can anyone suggest, how to getdate and subtract it to previous date in PS code assign the current date to a variable.My current code is not allowing me to do that. $path = "A/B/C" (Get-Date).AddDays(-1).ToString("yyyy-mm-dd") Get-Date -Format "dddd MM/dd/yyyy HH:mm K" $blobs = Get-AzStorageBlob -Container $container_name -Prefix $path$date -Context $storage_account Quick help is great help for me.

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