Homebrew PCBs

DJ Delorie wrote:
> 
> Thanks!  That's one of the advantages of text-based file formats.  I
> wrote a perl script to generate the *.pcb files from the given
> spacing, then used pcb's command line options to export those files in
> various formats.  Once I had the perl script and a shell script
> wrapper, I just run the wrapper and everything gets generated.
>
> 
What that a separate command line tool you used to generate the .grb, 
.drl and .pdf files from the .pcb file ?