look at the script command

"bell" scribbled on the stall wall:
> Hello all
>
>
> I am trying to redirect ttyS0 to both a file and still view the ttyS0
> output in a window like an XTERM ? Is it possible to do this just from
> the command line ?
>
> I tried many
>
> cat > ttyS0 > capturettyS0 and
> cat /dev/ttyS0 | tee capturettyS0 command to no avail.
>
> Does any one know how to do it.
> Thanks in advance.
>

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maybe:
cat /dev/ttyS0 > /dev/ttyS0 > capturettyS0
or:
cat /dev/ttyS0 > /dev/ttyS0 | tee capturettyS0

Thanks hyperfusion.

I tried both and they did'nt work.

maybe you can run
cat /dev/ttyS0 > capturettyS0
and
cat /dev/ttyS0 > /dev/ttyS0

at the same time?