[lug] bash scripting question

[Jeffrey Haemer]

Chip,

diff <(grep abc file1) <(grep abc file2)

You want to google for for "process substitution" .

HTH!

On Thu, Oct 7, 2010 at 5:08 PM, Chip Atkinson <chip at pupman.com> wrote:

> Greetings,
>
> I'm trying to remember how to use the output of two commands without using
> temp files.  Say for example that I wanted to grep two different files and
> then diff the output of the greps.
> With temp files it would be
>
> grep abc file1 > /tmp/f1
> grep abc file2 > /tmp/f2
> diff /tmp/f1 /tmp/f2
>
> I know I've seen it done before but I don't know even the google terms.
>
> Thanks in advance.
> Chip
>
>
>
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-- 
Jeffrey Haemer <jeffrey.haemer at gmail.com>
720-837-8908 [cell], http://seejeffrun.blogspot.com [blog],
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