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extract all hotmail email addresses in a file and store in separate file
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Subject Author Date
extract all hotmail email addresses in a file and store in separate file Dennis 06-18-2008
Posted by pete on June 19, 2008, 8:25 am
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 Bartc wrote:
>>
>>> Dennis wrote:
>>>> Hi, I have a text file that contents a list of email addresses like
>>>> this:
>
>>> /* BEGIN new.c output */
>
>>> <snip 250+ lines of C >
>
>> Wow - All that just to separate @hotmail.com from anything else ? I'm
>> glad I stuck with perl :)
>
> I think pete just enjoys writing huge amounts of C code. Or showing off..

I can see why you might think that.

> I thought my 50-line answer (posted to comp.lang.c only) might have been a
> bit long because it didn't make clever use of scanf(), but at least it could
> deal with /any number/ of email addresses from a file.
>
> This code I /think/ only deals with the 4 email addresses in the OP's
> example..

It deals with how many and whichever string literals
are placed into this macro:

#define STRINGS \
{ "\"foo@yahoo.com\"", "\"tom@hotmail.com\"", \
"\"jerry@gmail.com\"", "\"tommy@apple.com\""}

The program uses the STRINGS macro to initialize the input file.

--
pete

Posted by Martijn Lievaart on June 19, 2008, 2:38 am
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 On Wed, 18 Jun 2008 12:33:45 -0700, Dennis wrote:

> Hi, I have a text file that contents a list of email addresses like
> this:
>
> "foo@yahoo.com"
> "tom@hotmail.com"
> "jerry@gmail.com"
> "tommy@apple.com"
>
> I like to
>
> 1. Strip out the " characters and just leave the email addresses on each
> line.
> 2. extract out the hotmail addresses and store it into another file. The
> hotmail addresses in the original file would be deleted.

perl -nie 'if (/\@hotmail.com@$/) { s/"//g; print; }' text_file

HTH,
M4

Posted by Martijn Lievaart on June 19, 2008, 1:55 pm
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On Thu, 19 Jun 2008 08:38:40 +0200, Martijn Lievaart wrote:

> perl -nie 'if (/\@hotmail.com@$/) { s/"//g; print; }' text_file

Or even:

perl -nie 's/"//g; print if /\@hotmail.com@$/' text_file

M4

Posted by Dr.Ruud on June 20, 2008, 5:32 am
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Martijn Lievaart schreef:
> On Thu, 19 Jun 2008 08:38:40 +0200, Martijn Lievaart wrote:

>> perl -nie 'if (/\@hotmail.com@$/) { s/"//g; print; }' text_file
>
> Or even:
>
> perl -nie 's/"//g; print if /\@hotmail.com@$/' text_file

Don't you mean this?

perl -ne 's/"//g; print if /\@hotmail\./' text_file

--
Affijn, Ruud

"Gewoon is een tijger."

Posted by Martijn Lievaart on June 20, 2008, 4:27 pm
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On Fri, 20 Jun 2008 11:32:27 +0200, Dr.Ruud wrote:

> Martijn Lievaart schreef:
>> On Thu, 19 Jun 2008 08:38:40 +0200, Martijn Lievaart wrote:
>
>>> perl -nie 'if (/\@hotmail.com@$/) { s/"//g; print; }' text_file
>>
>> Or even:
>>
>> perl -nie 's/"//g; print if /\@hotmail.com@$/' text_file
>
> Don't you mean this?
>
> perl -ne 's/"//g; print if /\@hotmail\./' text_file

I think I ment this:

perl -ni -e 's/"//g; print if /\@hotmail.com@$/' text_file

(-i makes a backup, -ie probably takes the 'e' as the backup suffix.)

M4

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