deleteblobswithprefix

#The below PowerShell script helps to delete the blobs iterating through all the conatiner in a stroage account with Prefix

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# Connect to Azure
Connect-AzAccount

# Specify the Azure Storage account details
$storageAccountName = "SA name"

# Specify the prefix to delete blobs
$prefix = "Folder/path"

# Get the storage account
$storageAccount = Get-AzStorageAccount -ResourceGroupName "RGname" -Name $storageAccountName

# Get the storage context
$storageContext = $storageAccount.Context

# Get all containers in the storage account
$containers = Get-AzStorageContainer -Context $storageContext

# Delete blobs from each container
foreach ($container in $containers) {
    $continuationToken = $null
    $totalDeletedBlobs = 0
    
    do {
        $blobs = Get-AzStorageBlob -Context $storageContext -Container $container.Name -Prefix $prefix -ContinuationToken $continuationToken
        $blobsCount = $blobs.Count
        $totalDeletedBlobs += $blobsCount

        foreach ($blob in $blobs) {
            Write-Host "Deleting blob: $($blob.Name)"
            Remove-AzStorageBlob -Context $storageContext -Container $container.Name -Blob $blob.Name -Force
        }

        $continuationToken = $blobs.ContinuationToken
    }
    while ($continuationToken -ne $null)

    Write-Host "Deleted $totalDeletedBlobs blobs from container: $($container.Name)"
}

Write-Host "Blob deletion completed."