Can rsync write to a FIFO?

Heiko Schlittermann hs at
Sat Feb 11 14:31:18 UTC 2023

Chris Green via rsync <rsync at> (Fr 10 Feb 2023 10:31:15 CET):
> Can rsync write to a FIFO?  Obviously one needs the --inplace to do
> this, does one also need --write-devices?

I think, there is no point in using rsync, as there is nothing to
compare against on the remote side (and I've doubts if rsync will be
happy with a "file" that isn't seekable.)

As rsync uses SSH nowadays, I'd do something like

        scp LOCAL-FILE remote-host:FIFO

But, I'm not sure if scp is happy with a FIFO on the remote end.
A fallback could be

        ssh remote-host 'cat >FIFO' <LOCAL-FILE

    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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