Powershell – Exclude folders in Get-ChildItem

Question 1

How to exclude folders ? Now I hardcode the folder names but i want it to be more flexible.

foreach($file in Get-ChildItem $fileDirectory -Exclude folderA,folderb)

1 2	foreach($file in Get-ChildItem $fileDirectory -Exclude folderA,folderb)

Question 2

“How to exclude folders ?” , if you mean all folders :

get-childitem "$fileDirectory\\*" -file

1 2	get-childitem "$fileDirectory\\*" -file

but it works only for the first level of $fileDirectory .
This works recursevly :

Get-ChildItem "$fileDirectory\\*"  -Recurse | ForEach-Object { if (!($_.PSIsContainer)) { $_}}

1 2	Get-ChildItem "$fileDirectory\\*" -Recurse \| ForEach-Object { if (!($_.PSIsContainer)) { $_}}

or

 Get-ChildItem "$fileDirectory\\*"  -Recurse | where { !$_.PSisContainer }

1 2	Get-ChildItem "$fileDirectory\\*" -Recurse \| where { !$_.PSisContainer }

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