Passing parameters to Powershell

Is this functionality already built in?

Example usage:
```ps1
# CreateFile.ps1
Param (
  $Path
)
New-Item $Path # Creates a new file at $Path.
Write-Host "File $Path was created"
```

```powershell
./CreateFile.ps1 -Path './newfile.txt' # File ./newfile.txt was created.
```