On 16/01/2021 17:53, Martin Gregorie wrote:

>
> sudo tail -f  /var/log/messages | awk -- '{ print $0 }'
>
> which works here.
>
>

when you say works, what do you mean?

A quick check on my machine show that this too is buffered.

Try writing messages using the logger command in a bash shell.

It looked to me as if I had to write nearly 3000 bytes before it flushed
,and hence awk printed out.

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