Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!wuarchive!uunet!convex!usenet
From: tchrist@convex.COM (Tom Christiansen)
Newsgroups: comp.unix.wizards
Subject: Re: How does one redirect just stderr under the C Shell?
Message-ID: <1991May08.154738.26889@convex.com>
Date: 8 May 91 15:47:38 GMT
References: <2740@umriscc.isc.umr.edu>
Sender: usenet@convex.com (news access account)
Reply-To: tchrist@convex.COM (Tom Christiansen)
Organization: CONVEX Software Development, Richardson, TX
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Nntp-Posting-Host: pixel.convex.com

From the keyboard of rwl@ee.umr.edu (Wayne Little):
:*BUT* after all these years I still can't figure out how to redirect
:*just* stderr independently of stdout under the C Shell.

:I'm at a loss under the C Shell.

In general, it can't be done.  

Now, I'm sure someone will suggest

    ( foo > foo.stdout ) >& foo.stderr

but that's not right: stdout is mangled.   Someone else
will suggest

    ( foo > /dev/tty ) >& foo.stderr

but that's not right, as stdout is no longer going where it
had been going.  

If your system should support /dev/fd pseudo-devices, this 
ought to work:

    ( foo > /dev/stdout ) >& foo.stderr

But few of us have that feature on our systems.  


--tom
--
Tom Christiansen		tchrist@convex.com	convex!tchrist
		"So much mail, so little time."