Coldfusion rename file and place in another directory

I need the path name in order to rename a file. The user selects the file to be renamed and ColdFusion should rename the file.

My challenge is how to get the pathname of the selected file.


<!--- Check to see if the Form variable exists. --->
<cfif isDefined("Form.FileContents") >


<!---
<cffile
action = "rename"
    destination = "pathname"
    source = "full pathname"
    attributes = "file attributes list"
    mode = "mode"> --->a
<cfelse>
    <!--- If FALSE, show the Form. --->
    <form method="post" action=<cfoutput>#cgi.script_name#</cfoutput>
        name="uploadForm" enctype="multipart/form-data">
        <input name="FileContents" type="file">
        <br>
        <input name="submit" type="submit" value="Upload File">
    </form>
</cfif>