On Thu, Oct 08, 2015 at 10:30:29AM +0100, Ralph Corderoy wrote:
> Hi Hog,
>
> > When piping to gv:
> > groff -mm oops|gv -
> > The second page throws PostScript errors, the primary being "undefined in
> > BP".
> >
> > Trying with output to a file:
> > groff -mm oops>oops.ps
> > Produces a properly formatted second page.
I have not found any evidence that gv(1) is documented as taking '-' as an
alias for the standard input.
Interestingly gv /dev/stdin < manual.ps works.
But ...
cat manual.ps | gv /dev/stdin
gv: Cannot open file /dev/stdin (No data available)
cat manual.ps | ( sleep 1; gv /dev/stdin )
gv: Cannot open file /dev/stdin (No data available)
I suspect a funny race condition involving pipes.
All my shell code using gv employ files named /tmp/$$_something
when I might have used a pipe.
--
Mike Bianchi
Foveal Systems
973 822-2085
mbian...@foveal.com
http://www.AutoAuditorium.com
http://www.FovealMounts.com
