On Fri, Dec 03, 1999 at 03:18:13PM +0000, David B. Wilson wrote: > Mirek Kwasniak wrote: > > > #! /bin/sh > > > gs -sDEVICE=pbmraw -q -dNOPAUSE -r600 -sOutputFile=- - | \ > > > pbm2ppa - - | > > ^ > > Why this pipe? > pbm2ppa converts the ghostscript output into something my > HP 720 can understand (ppa?). The above script is verbatum > from the pbm2ppa documentation. I have tested the above > script and pbm2ppa program and can directly send a postscript > file to the printer, I just can spool it with lprng.
I think the last pipe char is a bug. > > > > When I have problems with filters I use tracing, try change your filter to: > > > > #! /bin/sh > > ( > > set -x > > gs -sDEVICE=pbmraw -q -dNOPAUSE -r600 -sOutputFile=- - | \ > > pbm2ppa - - > > ) 2> /tmp/printer.log > > > > I tried this and the file /tmp/printer.log wasn't created, suggesting to > me that lprng didn't even to as far as trying to filter the file? Yes , it isn't on path or isn't executable. Mirek
