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Re: which stream is prompt written to? [message #6965 is a reply to message #6963]

Sun, 08 September 1996 00:00

chs11
Messages: 14
Registered: October 1995

Junior Member

In article <503f0wypx9.fsf@mbcsg1.sghms.ac.uk>,
Christian Soeller <csoelle@sghms.ac.uk> wrote:
> chs11@aloha.cc.columbia.edu (Carl H Sayres) writes:
>
>> I need to pipe commands into idl and recieve the output from the stdout
>> and stdin streams. It all works fine except that I don't receive the
>> "IDL> " prompt. I'd like this so that I can know when a command has
>> finished.
> It's written to stderr. If you say something like
> un*x> idl 2>stderr.out
> you find all the prompts and the startup message in the file stderr.out.
>
> So maybe
> un*x> idl > named_pipe 2>&1
> is what you would want to do (assuming ksh like shell syntax).

Your first example works (idl 2>stderr.out). But if you put a set of
commands in a file and do this:
idl < idl.in > idl.out 2> idl.err
you don't get any prompts! Can anyone explain????

Carl

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[Message index]

		Re: which stream is prompt written to? By: Christian Soeller on Mon, 09 September 1996 00:00
		Re: which stream is prompt written to? By: chs11 on Sun, 08 September 1996 00:00
		Re: which stream is prompt written to? By: Christian Soeller on Fri, 06 September 1996 00:00

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