grep < fifo fails

[Ole Tange <ota@prosa.dk>]

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.


Regards,

Ole Tange


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