zzzz URL justin mason writes dev fd NUMBER is stdin filedescriptor NUMBER looks like the ps file wants to know its filename but it s being read from stdin that s my guess i don t think so it should be getting a stream of ps from stdin but it s not the printing spooling system is executing gs but somehow failing to provide it with input try tweaking the scripts to run gs with the ps file on the command line instead of as that might clarify that the later part of the system works but i suspect the problem is earlier b brendan halpin dept of government and society limerick university ireland tel w NUMBER NUMBER NUMBER f NUMBER NUMBER NUMBER h NUMBER NUMBER NUMBER room fNUMBER NUMBER x NUMBER mailto brendan halpin ul ie URL irish linux users group ilug URL URL for un subscription information list maintainer listmaster URL 