Azure: PowerShell to List All Blobs in Storage


I have an Azure account for development and testing purposes that I want to keep as clean as possible. Part of my routine is clearing out unneeded blobs in the Storage Accounts. To do this using the Portal UI would take a long time… so PowerShell to the rescue.

I thought there would be a quick like piped command something like this:
Get-AzureStorageAccount | Get-AzureStorageContainer | Get-AzureStorageBlob

But no such luck. There’s extra steps to access the Storage Key and to create an Azure Storage Context object needed.

# optional!
$PreviousVerbosePreference = $VerbosePreference
$PreviousWarningPreference = $WarningPreference
$VerbosePreference = "SilentlyContinue"
$WarningPreference = "SilentlyContinue"

# if not alreay logged in to your Azure account...
# Add-AzureAccount
# if more than one subscription
# Select-AzureSubscription -SubscriptionName ????

Get-AzureStorageAccount |
  foreach {

    $acct = $_.label; $storageKey = (Get-AzureStorageKey -StorageAccountName $acct ).Primary;

    $ctx = New-AzureStorageContext -StorageAccountName $acct
-StorageAccountKey $storageKey;

    Get-AzureStorageContainer -Container * -Context $ctx } |

  foreach { $container = $_.Name; $_ } |

  Get-AzureStorageBlob |

  Select {$_.context.StorageAccountName}, {$container}, name,blobtype,length |

  Format-Table -autosize

# optional!
$VerbosePreference = $PreviousVerbosePreference

Select @{label="Storage Account";expression={$_.context.StorageAccountName}},
       @{label="Bytes";expression={"{0,20:N0}" -f $_.length}} |

$WarningPreference = $PreviousWarningPreference


And if you like pretty columns then replace the Select line with this:

Select @{label="Storage Account";expression={$_.context.StorageAccountName}},
       @{label="Bytes";expression={"{0,20:N0}" -f $_.length}} |


There’s got to be a better way to do this. So post any better solution as a comment!


Total storage?

Replace the Format-Table line with “Measure-Object -Property length -Sum” and you can get a file count and total bytes. (Don’t combine this with the “pretty columns” change!)


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