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Programming > Awk > Re: search for ...
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Re: search for charater "="

by gazelle@[EMAIL PROTECTED] (Kenny McCormack) May 5, 2008 at 01:56 PM

In article <481F09BE.9030703@[EMAIL PROTECTED]
>,
Ed Morton  <morton@[EMAIL PROTECTED]
> wrote:
>On 5/5/2008 3:58 AM, Nezhate wrote:
>> Thanks for your help.
>> I have another question:
>> how to delete en entire specified lines in file using awk
>> , for example I want to delete the 5 th, 8 and 10 th line in file2 ?
>
>awk 'BEGIN{split("5 8 10",t);for(i in t)skip[t[i]]} !(NR in skip)' file
>
>	Ed.
>

I was thinking along those lines, but it does seem a little bulky, not
to mention that someone might point out that array lookups might be
costly (not that any of us is likely to ever notice it in our lifetimes).

How about: NR ~ /^(5|8|10)$/

Note that since this is a static RE, it will be compiled at compiletime,
not at runtime, so it should be pretty efficient.




 13 Posts in Topic:
search for charater "="
Nezhate <mazouz.nezhat  2008-05-05 00:31:15 
Re: search for charater "="
pk <pk@[EMAIL PROTECTE  2008-05-05 09:49:23 
Re: search for charater "="
Nezhate <mazouz.nezhat  2008-05-05 01:58:02 
Re: search for charater "="
pk <pk@[EMAIL PROTECTE  2008-05-05 11:11:28 
Re: search for charater "="
Ed Morton <morton@[EMA  2008-05-05 08:21:02 
Re: search for charater "="
Ed Morton <morton@[EMA  2008-05-05 08:25:51 
Re: search for charater "="
pk <pk@[EMAIL PROTECTE  2008-05-05 15:46:30 
Re: search for charater "="
Ed Morton <morton@[EMA  2008-05-05 08:54:00 
Re: search for charater "="
gazelle@[EMAIL PROTECTED]  2008-05-05 13:56:33 
Re: search for charater "="
Ed Morton <morton@[EMA  2008-05-05 09:26:17 
Re: search for charater "="
"Rajan" <rsh  2008-05-05 22:33:48 
Re: search for charater "="
Janis <janis_papanagno  2008-05-05 02:14:53 
Re: search for charater "="
Ed Morton <morton@[EMA  2008-05-05 08:17:13 

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tan12V112 Thu May 15 23:01:06 CDT 2008.