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Re: Bug in grep when using both --after-context and --invert-match
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From: |
Paul Jarc |
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Subject: |
Re: Bug in grep when using both --after-context and --invert-match |
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Date: |
Fri, 04 Nov 2005 11:30:27 -0500 |
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User-agent: |
Gnus/5.110003 (No Gnus v0.3) Emacs/21.4 (gnu/linux) |
Oni Studio <address@hidden> wrote:
> Logically, i tried:
> grep -v -A4 'zone "domain.com' /etc/bind/zones > /etc/bind/zones.new
>
> This did not produce the desired effect.
Right. This gives you eery line that does not match your pattern,
along with the following four lines. Here's one way to get what you
want (untested):
grep -A4 'zone "domain.com' /etc/bind/zones |
diff - /etc/bind/zones |
sed '/^> /!d;s/^> //'
paul