How to rename a blob file using powershell - powershell

Question

seemingly simple task. I just want to rename a blob file, I know I have to copy it to rename or something, then delete the original but this is proving tricky. I have created the storage context (New-AzureStorageContext), and got the blob (Get-AzureStorageBlob), and found Start-AzureStorageBlobCopy, but how to I actually rename it?
I'd like to do this within the same container if possible as well. Ideally I'd run it in an Azure Runbook and call it using a webhook I Azure Data Factory v2. I did try to rename the file using 'Add Dynamic Content' in the copy job sink in DFv2, but I don't think you can. By the way, I just want to append the date to the existing file name. Thank you.

Answer 1

You can use my Rename-AzureStorageBlobconvenience function:
function Rename-AzureStorageBlob
{
[CmdletBinding()]
Param
(
[Parameter(Mandatory=$true, ValueFromPipeline=$true, Position=0)]
[Microsoft.WindowsAzure.Commands.Common.Storage.ResourceModel.AzureStorageBlob]$Blob,
[Parameter(Mandatory=$true, Position=1)]
[string]$NewName
)
Process {
$blobCopyAction = Start-AzureStorageBlobCopy `
-ICloudBlob $Blob.ICloudBlob `
-DestBlob $NewName `
-Context $Blob.Context `
-DestContainer $Blob.ICloudBlob.Container.Name
$status = $blobCopyAction | Get-AzureStorageBlobCopyState
while ($status.Status -ne 'Success')
{
$status = $blobCopyAction | Get-AzureStorageBlobCopyState
Start-Sleep -Milliseconds 50
}
$Blob | Remove-AzureStorageBlob -Force
}
}
It accepts the blob as pipeline input so you can pipe the result of the Get-AzureStorageBlob to it and just provide a new name:
$connectionString= 'DefaultEndpointsProtocol=https;AccountName....'
$storageContext = New-AzureStorageContext -ConnectionString $connectionString
Get-AzureStorageBlob -Container 'MyContainer' -Context $storageContext -Blob 'myBlob.txt'|
Rename-AzureStorageBlob -NewName 'MyNewBlob.txt'
To append the date to the existing file name you can use something like:
Get-AzureStorageBlob -Container 'MyContainer' -Context $storageContext -Blob 'myBlob.txt' | ForEach-Object {
$_ | Rename-AzureStorageBlob -NewName "$($_.Name)$(Get-Date -f "FileDateTime")" }
Further reading: Rename Azure Storage Blob using PowerShell