Hi, I see stdbuf available in coreutils.
http://www.gnu.org/software/coreutils/manual/html_node/stdbuf-invocation.html But I don't find it in my system. Was stdbuf just introduced recently? Or there is something wrong with my installation? ~$ wc --version wc (GNU coreutils) 8.21 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by Paul Rubin and David MacKenzie. ~$ which stdbuf 2> /dev/null || echo $? 1 ~$ uname -o Darwin -- Regards, Peng