Question

I currently have a function that I made that gets a list of all files in a directory and then adds them to an array called $FileListArray.

I want to add an option that lets me specify the file extensions to exclude from the arrary so that I could call the function as follows ListFiles -FilesToList “c:\test” –exclude “avi,txt,bmp” and this would then ignore files with any of the file extensions I have put in.

My Function so far

Function ListFiles($FilesToList){

$FileListArray = @()
    Foreach($file in Get-ChildItem $FilesToList -Force -Recurse  | Where-Object {$_.attributes -notlike "Directory"})
    {
        $FileListArray += ,@($file.name,$file.fullname,$File.Extension)
    }

    }

Listfiles  -FilesToList "c:\tools"

Answer 1

Try this:

Function ListFiles($Path,$Exclude)
{
    Get-ChildItem -Path $FilesToList -Force -Recurse  | 
    Where-Object {!$_.PSIsContainer -and $_.Extension -notmatch ($Exclude -join '|') }
}

Listfiles -Pathc:\tools –Exclude avi,txt,bmp