Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cme!libes
From: libes@cme.nist.gov (Don Libes)
Newsgroups: comp.unix.questions
Subject: Re: re-directing 'rup' to a file
Message-ID: <11872@muffin.cme.nist.gov>
Date: 5 Mar 91 19:37:33 GMT
References: <1991Mar5.014821.1555@unixland.uucp> <1991Mar05.080251.15424@convex.com>
Organization: National Institute of Standards and Technology
Lines: 21

In article <1991Mar05.080251.15424@convex.com> tchrist@convex.COM (Tom Christiansen) writes:
>: he is trying to do something like 
>:   timeout 10 rup > rup.list
>:When the timeout occurs, though, there is nothing in rup.list!

>You need to get it to think its output is a tty.  Dan will suggest
>using pty.  Nothing much short of hacking the source comes to mind.

You can do this with expect.  Here is a csh alias that allows your
original "timeout ..." command to work correctly.

alias timeout 'expect -c "set timeout \!:1; spawn \!:2; expect"'

>While it's nice that pty should care of a lot of obnoxious things like
>this, I think that this is just a hack around a problem caused by lack
>of design forethought in stdio: you shouldn't need a whole pty just to
>get line buffering!

I agree.

Don Libes          libes@cme.nist.gov      ...!uunet!cme-durer!libes