On 2024-03-17 17:12, Zachary Santer wrote: > On Thu, Mar 14, 2024 at 11:14 AM Carl Edquist <edqu...@cs.wisc.edu> wrote: > >> Where things get sloppy is if you add some stuff in a pipeline after your >> build script, which results in things getting block-buffered along the >> way: >> >> $ ./build.sh | sed s/what/ever/ | tee build.log >> >> And there you will definitely see a difference. > > Sadly, the man page for stdbuf specifically calls out tee as being > unaffected by stdbuf, because it adjusts the buffering of its standard > streams itself. The script I mentioned pipes everything through tee, > and I don't think I'm willing to refactor it not to. Ah well.
But what tee does is set up _IONBF on its output streams, including stdout.
