Deleting files in subfolders older than x days - powershell

Question

I am trying to delete all files in subfolders of a given folder without deleting the subfolders themselves. I have tried various examples but they are not doing what I expect.
The basic structure of the file tree I am trying to negotiate is:
C:\Backups\Subfolder1
C:\Backups\Subfolder2
C:\Backups\Subfolder3
and I am using the following code:
$limit = (Get-Date).AddDays(-14)
$path = "C:\Backups"
Get-ChildItem -Path $path -Recurse -Force |
Where-Object { !$_.PSIsContainer -and $_.CreationTime -lt $limit } |
Remove-Item -WhatIf
I am finding that the files in the subdirectories are being ignored despite the -Recurse flag being used, although any files in the C:\Backups directory are included. If I remove the !$_.PSIsContainer clause the file in the subfolder is included but so are all of the directories.
Can anyone show me how to include the files in the subfolder while still ignoring the subfolders themselves?

Answer 1

If you are using powershell 3.0 you can simply use the -File switch:
$limit = (Get-Date).AddDays(-14)
$path = "C:\Backups"
Get-ChildItem -Path $path -File -Recurse | where { $_.LastWriteTime -lt $limit } | Remove-Item

Answer 2

The below code works for me. Are you on an older version of powershell?
$limit = (Get-Date).AddDays(-14)
$path = "C:\Users\nathan.cooper\Documents"
Get-ChildItem -Path $path -Recurse -Force |
where { (! $_.PSIsContainer) -and ($_.LastWriteTime -lt $limit) } |
Remove-Item -whatif

Answer 3

$limit = (Get-Date).AddDays(-14)
$files = Get-ChildItem -Path C:\Backups -Directory:$false -Recurse
$files | ForEach-Object -Process {
if($_.CreationTime -lt $limit)
{
Remove-Item $_.FullName -Force
}
}
The -Directory:$False parameter means you don't have to worry about deleting any directories because they won't be included in the array.