bash : stderr & more (pipe for stderr)

[Igor Pechtchanski]

On Sat, 14 Jun 2003, Randall R Schulz wrote:

> Alex,
>
> At 00:25 2003-06-14, Alex Vinokur wrote:
>
> >$ <command> | more     # works only for stdout
> >
> >$ <command> |& more
> >bash: syntax error near unexpected token `&'
> >
> >How to use pipe for stderr?
>
> BASH uses the Bourne and Korn shell syntax for redirection. You're
> using the CSH / tcsh variety.
>
>
> # Redirect standard out and standard error separately
> % cmd >stdout-redirect 2>stderr-redirect
>
> # Redirect standard error and out together
> % cmd >stdout-redirect 2>&1
>
> # Merge standard error with standard out and pipe
> % cmd 2>&1 |cmd2
>
> Randall Schulz

Randall,

I'm probably being a smartass here, but you can also *swap* stdout and
stderr on redirection:

% cmd 3>&2 2>&1 1>&3-

Hope this helps,
	Igor
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