Deleting Files in Azure File Share older than X Days

Question

I'm currently trying to write a powershell script to delete files older than 14 days from our Azure file shares. The problem I'm running into is, the files don't return a last modified date, except in the actual UI in portal.azure.com. I have created a context using my access keys, but this still doesn't seem to work. Below is the code I'm using (sanitized for privacy) so far.

$StorageAccountKey = "\

Answer 1

@John Kuntz

Apologies for the delayed response. For “Get-AzStorageFile”:
• Without “-Path”: It will list file/FileDir which directly in a share/fileDir. To list recursively in a share/FileDir, you need to call it recursively.
• With “-Path”: It will get an instance of a directory or file (with file properties like LMT) in the specified path.

The following script will list files/FileDir recursively in a file share, and delete the files older than 14 days.

$ctx = New-AzStorageContext -StorageAccountName $accountName -StorageAccountKey $key  
$shareName = <shareName>  
  
$DirIndex = 0  
$dirsToList = New-Object System.Collections.Generic.List[System.Object]  
  
# Get share root Dir  
$shareroot = Get-AzStorageFile -ShareName $shareName -Path . -context $ctx   
$dirsToList += $shareroot   
  
# List files recursively and remove file older than 14 days   
While ($dirsToList.Count -gt $DirIndex)  
{  
    $dir = $dirsToList[$DirIndex]  
    $DirIndex ++  
    $fileListItems = $dir | Get-AzStorageFile  
    $dirsListOut = $fileListItems | where {$_.GetType().Name -eq "AzureStorageFileDirectory"}  
    $dirsToList += $dirsListOut  
    $files = $fileListItems | where {$_.GetType().Name -eq "AzureStorageFile"}  
  
    foreach($file in $files)  
    {  
        # Fetch Attributes of each file and output  
        $task = $file.CloudFile.FetchAttributesAsync()  
        $task.Wait()  
  
        # remove file if it's older than 14 days.  
        if ($file.CloudFile.Properties.LastModified -lt (Get-Date).AddDays(-14))  
        {  
            ## print the file LMT  
            # $file | Select @{ Name = "Uri"; Expression = { $_.CloudFile.SnapshotQualifiedUri} }, @{ Name = "LastModified"; Expression = { $_.CloudFile.Properties.LastModified } }   
  
            # remove file  
            $file | Remove-AzStorageFile  
        }  
    }  
    #Debug log  
    # Write-Host  $DirIndex $dirsToList.Length  $dir.CloudFileDirectory.SnapshotQualifiedUri.ToString()   
}   

Hope this helps! Let us know if you run into issues or have further questions.

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