Re: tee -a to to files

On Thu, 08 Dec 2005 13:07:25 +0200, Etienne Marais wrote:
[...]
> 2) two files, one containg stdout and the other stderr ?
[...]
> 2) command 2> /path/to/errfile | tee /path/to/stdoutfile
>
> But 2 will not display errors on the output anymore,
> perhaps that's part of the reason you asked ?
>
> How does one do ' 2| ' analogous to ' 2> ' ?

2> is a redirection operator, "|" is a more complicate thing
that starts two commands simultanously and does some implicit
redirections. You can change those redirections with redirection
operators:

{ cmd 2>&1 >&3 3>&- | tee err >&2 3>&-; } 3>&-

{ { cmd | tee out; } 2>&1 >&3 3>&- | tee err >&2 3>&-; } 3>&1

--
Stephane
.

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