On Sat, Jul 18, 2015 at 10:53:23AM -0700, Larry McVoy wrote: > Apply these changes and you can do > > gpic ms.pic | grep > PS gpic ms.pic | groff > PS Took me a while to work out the empty grep! Obviously your brain sent groff and your fingers auto-corrected to grep as your fingers use that command more :-) Cheers, Warren