grep, etc

[Fairlight]

You'll never BELIEVE what Jay Ashworth said here...:
> 
> Actually, newer greps (GNUer greps?) do permit you to specify a window
> of context around the matched line; in particular, GNU grep (found on
> my RedHat 7.3 Linux, and likely most others, supports the -A and -B
> options for this.

Interesting.  I never bothered, really.  I didn't learn on GNU greps
originally, and had my methodology set wayyy back in '89.

I'll probably keep this in mind though when I next need to do it.  The
problem is that unless you have a guaranteed GNU grep, it's possibly
(probably?) not portable scripting.

Thanks for the heads-up.

mark->
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