Azure File Storage deletion calculation - azure

Question

I am trying to delete Files out of the Azure File Storage that are that are 30 + 1 on the first day of the month or older.
I have basic list and remove script that works. My main question is how do I do a calculation for a if older than statement?
$resourceGroupName=""
$storageAccName=""
$fileShareName=""
$directoryPath=""
## Function to Lists directories and files
Function GetFiles
{
Write-Host -ForegroundColor Green "Lists directories and files.."
## Get the storage account context
$ctx=(Get-AzStorageAccount -ResourceGroupName $resourceGroupName -Name $storageAccName).Context
## List directories
$directories=Get-AZStorageFile -Context $ctx -ShareName $fileShareName
## Loop through directories
foreach($directory in $directories)
{
write-host -ForegroundColor Magenta " Directory Name: " $directory.Name
$files=Get-AZStorageFile -Context $ctx -ShareName $fileShareName -Path $directory.Name | Get-AZStorageFile
## Loop through all files and display
foreach ($file in $files)
{
write-host -ForegroundColor Yellow $file.Name
}
}
}
GetFiles
$context = ""
Remove-AzStorageFile -ShareName "name" -Path "path" -Context $context
Get-ChildItem -Path $path -Recurse -Force | Where-Object { !$_.PSIsContainer -and $_.CreationTime -lt $limit } | Remove-Item -Force

Answer 1

We do have AZ CLI command to delete files older than XX days.
// Delete old files block
$filelist = az storage file list -s $myshare --account-name $accountName --account-key $accountKey
$fileArray = $filelist | ConvertFrom-Json
foreach ($file in $fileArray | Where-Object {$_.properties.lastModified.DateTime -lt ((Get-Date).AddDays(-31))})
{
$removefile = $file.name
if ($removefile -ne $null)
{
Write-Host "Removing file $removefile"
az storage file delete -s $myshare -p $removefile
}
}
Reference So Thread: Use Azure Cli to Delete Old Files in Azure file share - Stack Overflow