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procmail/sed question

 

 

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salblas at alumni

Sep 12, 2004, 8:52 AM

Post #1 of 2 (40 views)
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procmail/sed question

Hi all:
I wanted to write a procmail recipe to erase the MSN
advertisements at the end of the emails coming from hotmail. You know
what i'm talking about, don't you? Well, i tried this:

:0 fw
* ^From.*(hotmail|msn)\.com
| sed -e 's/^\_{65}$(^.*$){2}/Annoying advertisement removed/'

But it does nothing. What is wrong with it? Is there a better
solution? As you can see it should replace a single line with 65 underscores
followed by two lines but it does nothing. Any idea?

Thanks in advance.


kaminsky at math

Sep 12, 2004, 12:22 PM

Post #2 of 2 (44 views)
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Re: procmail/sed question [In reply to]

* Salvador Blasco Llopis <salblas [at] alumni> [12/09/04 16:54]:
> Hi all:
> I wanted to write a procmail recipe to erase the MSN
> advertisements at the end of the emails coming from hotmail. You know
> what i'm talking about, don't you? Well, i tried this:
>
> :0 fw
> * ^From.*(hotmail|msn)\.com
> | sed -e 's/^\_{65}$(^.*$){2}/Annoying advertisement removed/'
>
> But it does nothing. What is wrong with it? Is there a better
> solution? As you can see it should replace a single line with 65 underscores
> followed by two lines but it does nothing. Any idea?

My sed is a bit rusty, but AFAIK, sed works linewise: the substitution
is performed on each line; and the $ stands for the end of line. If you
are willing to use perl instead of sed, a similar solution is:

| perl -O0777 -pe 's/^_{65}$(.*?$){2}/Annoying advertisement removed/mgo'

(untested). The -O0777 causes the whole input to be passed as one line.
The m option to the substitution operator tells perl to interpret the $
as new line rather than end of string.

HTH,
Moshe
>
> Thanks in advance.



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Moshe Kaminsky <kaminsky [at] math>

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