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  • 1
    If the program makes use of -f - there should also be something like -q for "quiet", given it's not done by default. Have you checked that? Commented Jun 21, 2019 at 13:54
  • I did check that, and no, there is no option to silence the program. I need to do that externally (or modify the source and recompile it, which I don't really like doing). Commented Jun 21, 2019 at 14:01
  • 2
    I'm not sure I understand what you're about but try program -f /dev/fd/3 3>&1 >/dev/null | ... Commented Jun 21, 2019 at 14:01
  • Unfortunately, that also silences the binary data the program is supposed to output (to fd 3). Commented Jun 21, 2019 at 14:03
  • 2
    Yes, it works. Provided, of course, that you're using the -o, not the -f option: src/nsntrace -o /dev/fd/3 wget www.google.com 3>&1 >/dev/null | .... I supposed you assumed that it cannot work. This is really annoying. Commented Jun 21, 2019 at 14:24