Re: [tlug] stdin/stderr redirection under Solaris

[br@example.com]

Quoting br@example.com:
> > test.sh:
> >   #! /bin/sh
> >   echo "standard output" >&1
> >   echo "STANDARD ERROR" >&2
> >
> > This command will do what you want, I guess (at least in bash):
> > $ (./test.sh | tr a-z A-Z) 3>&1 1>&2 2>&3 | tr A-Z a-z
> >
> > The first "tr" receives stdout as input, and the second one receives
> > stderr as input.
> > Take care of one thing: The current state of stdout/stderr is messed up
> > then. You may want to restore them, in case you have another pipe
> > following, for instance:
> > $ (((./test.sh | tr a-z A-Z) 3>&1 1>&2 2>&3 | tr A-Z a-z) 3>&1 1>&2 2>&3)
>
> Ooops. Use instead a "cat > OUT" and "cat > ERR" in my two examples (instead
> of "tr"), and you will understand what happens, i.e. the second cat received
> stderr as input.
> In my previous examples, the output of the first "tr" seems to be filtered
> again -partially- by the second one on my 5.8 box (it does not happen on
> Linux, strangely).

Ooops [2]. Forget about my last message. This is not a redirection problem,
but a "tr" issue: tr works differently on Solaris.
You should either use /usr/xpg4/bin/tr with my syntax, or, with /usr/bin/tr,
use the '[a-z]' notation instead of a-z.

My first message was correct with this small change, and should do what you
need.

br.