Redirect if file not exist

Question

Hi,
Testing if a file exists is not working, what do i wrong ?
I use URL redirect from graphical admin (or manually change obj.conf)
Configurations > [configuration name] > Virtual Servers > [virtual server name responding to url redirect] > [Content handling] > URL Redirects > New
- Condition : ! -f $path ( this should check if the file exist ?)
- Target URL: /testsite/test.html ( if not redirect to /testsite/test.html )
- URL Type: Fixed URL
The <virtual>-obj.conf looks like this :
<If !(-f$path)>
NameTrans fn="redirect" url="/testsite/index.html"
</If>
....

Answer 1

For the one who are interested in the solution, I found the problem :
if -f $path .... is never working, because the engine does not know where to find. You have to define the physical path
Solution :
define a "variable" : for example "finddir" who is pointing to (for example) : "/opt/oracle/webserver7/https-xxx/wep-app
now you can use :
if -f $finddir$path
or without defining a variable :
if -f "/opt/oracle/webserver7/https-xxx/wep-app$path"