Test-Executable.ps1
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function Test-Executable { param ( # filepath to check # throws an exception if the filepath carries an extension that can be executed (on Windows) # by using the extensions found in the environment variable PATHEXT. On Non-Windows OS this # environment variable may be missing [Parameter(Mandatory,ValueFromPipeline)] [string] $FilePath ) begin { # safeguard us from accidentally downloaded executables: $executables = $env:pathext -split ';' } process { $extension = [System.IO.Path]::GetExtension($FilePath) if ($extension -in $executables) { throw "Executable found." } return $FilePath } } |