In PowerShell, can Test-Path (or something else) be used to validate multiple files when declaring a string array parameter

Question

I have a function that accepts a string array parameter of files and I would like to use Test-Path (or something else) to ensure that all the files in the string array param

Answer 1

As @Matt said. Test-Path already accepts pipeline input, so you really just have to send the array directly in:

@($path1, $path2) | Test-Path

Which then returns:

> @("C:\foo", "C:\Windows") | Test-Path
False
True

If you just want to know if ALL of them exist:

($pathArray | Test-Path) -notcontains $false

Which yields:

 False