On Tue, Apr 21, 2020 at 08:38:41PM -0400, Dale R. Worley wrote: > The "unbuffered pipe" symbol ">|>" causes Bash to set in the > environment of the "grep" process a variable "STDOUT_UNBUFFERED" with > a value that contains the dev and ino values for the pipe which the > "grep" process sees as fd 1.
Which libc implements this? > References > > 14 Sep 1999 > https://marc.info/?l=glibc-bug&m=98313957306295&w=4 > "[REMINDER] stdio buffer flushing control environment variable" The next message in the thread is from Ulrich Drepper, saying: I will not implement this since it's completely up to the application to do this. One knows in advance when this is necessary. If there is a problem with the current code to select when line-buffering is used (we use as everybody else isatty) then one can talk about this. I think it is correct, though.
