Running a rename dos command from a Before Run Event

I'm trying to run the following dos command from a Before Run Event.

ren *.chart *.txt

The problem is that when I run the script I'm getting the following error message:

Error running Event #1: Failed to run external program "ren *.chart *.txt": The system cannot find the file specified.

Is there special formatting or syntax that I should be using: I've included a couple of screen shots below:

Thanks for your help

Workflow

Events

Accepted answers

One trick I find useful is to wrap it in a cmd call:

Allows you to call the standard set of dos commands then.

you cannot specify the command directly in the Command box

you have to specify what type of command such as exe or dos etc

in your case add your comman in Batchfile and run it

please see the screen below

Here is a macro example using XCopy.

The Run Command uses the following configuration:

for your example, you would change the Command Arguments to:

/c ren *.chart *.txt

Does this help?

Thanks,

mark

One trick I find useful is to wrap it in a cmd call:

Allows you to call the standard set of dos commands then.