[lug] grep question

[Collins Richey]

On 6/10/07, Chip Atkinson <chip at pupman.com> wrote:
> Greetings,
>
> I'm trying to figure this one out:
>
> $ echo abcdefg | /usr/bin/grep "[A-Z]"
> abcdefg
>
> $ echo abcdefg | /usr/bin/grep -E "[A-Z]"
> abcdefg
>
>
> I always thought "[A-Z]" represented the characters A through Z, and not
> the characters a through z.
>
> Any ideas?
>
> Thanks in advance.
>

A few things.

1. You have a weird system. grep is /bin/grep on any normal Linux system.
2. Your grep example produces no output, ie pattern not found, on my system.
3. You must have something in your environment or a script in
/usr/bin/grep that is forcing a case sensitive scan.

Enjoy,
-- 
Collins Richey
     If you fill your heart with regrets of yesterday and the worries
     of tomorrow, you have no today to be thankful for.