Dave, > On Mon, Nov 9, 2009 at 2:19 PM, John Mendenhall <j...@surfutopia.net> wrote: > > I have several openbsd 4.4 boxes, all of which are running > > spamd. I have a cron job which runs a script, which has the > > following commands in it: > > Well, sort is obviously calling fwrite to write on stdout, which > head reads. When head has had enough, it closes its input, > which is from the pipe. fwrite then terminates with an EPIPE > error, which sort is not (seemingly) handling properly. (Looks > like it is calling warn(3) or err(3).) Maybe sort(3) is not complaining > if isatty(fileno(stdout)). Only the source knows for sure. > > The mystery to me is why the error message does not appear > when the pipe is run on a tty. (I can duplicate your error easily). > > To me this looks like normal operation. You seem to be getting > the output you want, right?
Yup. So, I guess I can just throw away the standard error, to clean it up a bit. Definitely not a real issue. Just a curiosity that I like solving. I was just wondering why it runs differently in different environments. JohnM -- john mendenhall j...@surfutopia.net surf utopia internet services
