Test-FileOpen

function Test-FileOpen
{
  <#
.SYNOPSIS

Tests to see if a file is locked 
.DESCRIPTION

Returns true if the file can be opened. False if the file is open already.
.PARAMETER path to file

The path to a file. 
.EXAMPLE

test-Fileopen -FileToOpen "d:\temp\test.log"
#>
  Param
  ( [string]$FileToOpen)
    try
    {
      $openFile =([system.io.file]::Open($FileToOpen,[system.io.filemode]::Open))
      $open =$true
      $openFile.close()
    }
    catch
    {
      $open = $false
    }
    $open
}