Delete only files leaving empty sub-folders using powershell

You could add an additional where clause to ignore folders like this:

Where-Object{!($_.PSIsContainer)} 

In the code snippet above;

• ! means not,
• $_ means current value of object in the pipe,
• PSIsContainer is a property of the current object that returns true or false depending on if it is a folder or not.

So !($_.PSIsContainer) means current value of object in pipe is not a folder,
which is evaluated by Where-Object{}

Then your script would be like this:

$TargetFolder = “C:\Temp\ifc\” $NumberRange = "-1" Get-ChildItem $TargetFolder -Recurse | Where-Object{!($_.PSIsContainer)} | Where {$_.lastwritetime -lt (Get-Date).AddHours($NumberRange)} | Remove-Item 

Another approach is to ignore the folders at the call to Get-ChildItem using the -File parameter like this:

$TargetFolder = “C:\Temp\ifc\” $NumberRange = "-1" Get-ChildItem $TargetFolder -File -Recurse | Where {$_.lastwritetime -lt (Get-Date).AddHours($NumberRange)} | Remove-Item 

This approach has the benefit of returning the file objects at a sooner point in the execution cycle and making the command line shorter. Depending on the number of objects in the path, this may also have a measurable speed improvement.