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Date: Thu, 3 Dec 2020 16:48:59 -0800
From: Larry McVoy <lm@mcvoy.com>
To: Rob Pike <robpike@gmail.com>
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Subject: Re: [TUHS] The UNIX Command Language (1976)
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I should have done

	cat file file2 file3 ^ wc -l

since the redirect works with only one file.

On Fri, Dec 04, 2020 at 11:43:52AM +1100, Rob Pike wrote:
> I've long been fascinated by the prevalence of
> 
>    cat file | process
> 
> and think of it as a sort of triumph of the model. Pipes are more natural
> than redirection as a human interface.
> 
> -rob
> 
> 
> On Fri, Dec 4, 2020 at 11:30 AM Dave Horsfall <dave@horsfall.org> wrote:
> 
> > On Thu, 3 Dec 2020, Larry McVoy wrote:
> >
> > > Wasn't there a version that was
> > >
> > >       cat whatever ^ wc -l
> >
> > Sort of pipe-related, but one thing that really gets my goat is the
> > inefficient redundancy in "cat file | process" when "process < file" will
> > suffice (and I'll bet that I'm not alone).
> >
> > And yes, "^" preceded "|" for reasons discussed later in this thread.
> >
> > -- Dave
> >

-- 
---
Larry McVoy            	     lm at mcvoy.com             http://www.mcvoy.com/lm