If Ubound($CmdLine) < 2  Then
    ConsoleWrite("This program checks and waits for a given File to be opened for appending (write access check). Please provide a valid full path to an existing file as first and only parameter"&@CRLF)
    exit(1)
EndIf
If FileExists($CmdLine[1]) Then
    ;just go on
Else
    ConsoleWrite("The file "&$CmdLine[1]&" doesn not exist. Please provide a valid full path to an existing file as first and only parameter"&@CRLF)
    exit(1)
EndIf
    
While (1)
    ConsoleWrite("Trying to open"&$CmdLine[1]&@CRLF)
    Local $hFileOpen = FileOpen ( $CmdLine[1] ,1) ;open for appending
    If $hFileOpen = -1 Then
        ConsoleWrite("File not yet ready"&@CRLF)
        sleep(5000)
        ContinueLoop 
    EndIf
    FileClose($hFileOpen);
    ExitLoop
WEnd
ConsoleWrite($CmdLine[1] & " could successfully be opened for appending"&@CRLF)