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Re: Tr: Problem with grep v2.5.1
From: |
Micah Cowan |
Subject: |
Re: Tr: Problem with grep v2.5.1 |
Date: |
Fri, 18 May 2007 14:52:53 -0700 |
User-agent: |
Thunderbird 1.5.0.10 (X11/20070403) |
Paul Jarc wrote:
> Micah Cowan <address@hidden> wrote:
>> Paul Jarc wrote:
>>> grep -E -B 3 '\.\.\.([013-9][0-9]{2}|2[1-9][0-9]|20[1-9])'
>> You're using -E, so it should be "..." rather than "\.\.\."
>
> No, -E doesn't change the meaning of "\.".
You're right, of course.
>> Won't this approach have /exactly/ the same behavior?
>
> No. It matches "..." followed by a three-digit number other than 200,
> and also includes the previous 3 lines. Try it.
How is that not what the -v version does?
--
Micah J. Cowan
Programmer, musician, typesetting enthusiast, gamer...
http://micah.cowan.name/
Re: Tr: Problem with grep v2.5.1, Andreas Schwab, 2007/05/18