Re: Creating a zero-byte semaphore file
  By: Sean Dennis to All on Thu Jan 12 2006 04:29 pm

 > Hi, everyone.
 > 
 > I'm trying to create a zero-byte semaphore file from the command line for
 > Internet Rex to rescan upon a mail scan.  I'm using this:
 > 
 > copy 0 >> d:\bt\flags\rescan.now

        echo. >> filename

or (on some OSes):

        rem >> filename

                                                  digital man

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