On Wed, 3 Oct 2018 15:37:14, Ole Tange wrote: > This works: > > $ mkfifo fifo > $ echo > fifo & grep . fifo > [1] 10232 > [1]+ Done echo > fifo > > But this fails: > > $ echo > fifo & grep . < fifo > [1] 11756 > grep: (standard input): Invalid argument > [1]+ Done echo > fifo > > I see the same behavior on MINGW, but I do not see the same behavior on GNU= > /Linux.
64-@@ bash --version GNU bash, version 4.4.12(3)-release (x86_64-unknown-cygwin)64 .. 64-@@ echo > fifo & grep . < fifo [1] 1192 [1]+ Done echo > fifo 64-@@ grep --version grep (GNU grep) 3.0 Packaged by Cygwin (3.0-2) .. Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>. 64-@@ file fifo fifo: very short file (no magic) 64-@@ @@ bash --version GNU bash, version 4.4.12(3)-release (i686-pc-cygwin) .. @@ echo > fifo & grep . < fifo [1] 4852 [1]+ Done echo > fifo @@ grep --version grep (GNU grep) 3.0 Packaged by Cygwin (3.0-2) .. Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>. @@ file fifo fifo: very short file (no magic) @@ Your version of grep ????? Regards, Henri -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
