Read a file and email duplicate word in one field ?

britney has asked for the wisdom of the Perl Monks concerning the following question:

I have a flatfile record.txt

33, winxp, kansas,,,,,
55, win7, utah,,,,,
66, winxp, utah,,,,,
88, winxp, oregon,,,,,
[download]

How do i write in perl so if a word repeat twice or more in field #3 then it will email me those records?

Please check Utah, it repeat more than one.

55, win7, utah
66, winxp, utah
[download]

Thanks for teaching me.

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Re: Read a file and email duplicate word in one field ? by roboticus (Chancellor) on May 21, 2012 at 23:10 UTC
britney: Detecting duplicate values in a file is a commonly asked question. Read `perldoc perlfaq4` to get information on that (It's pretty easy: you just use a hash as a notepad to record all the values you've seen. So when you read each record from the file, you check the notepad to see if the value is already there.) As for creating and sending the EMail, I used to use MIME::Lite. ...roboticus When your only tool is a hammer, all problems look like your thumb.	[reply] [d/l]
Re^2: Read a file and email duplicate word in one field ? by britney (Acolyte) on May 23, 2012 at 19:32 UTC
Thanks, I just use awk and mailx to solve my problem. Thanks again	[reply]
Re: Read a file and email duplicate word in one field ? by Anonymous Monk on May 22, 2012 at 03:32 UTC
Thanks for teaching me. Hmm, searching perlmonks, checking the faq, there is even a tutorial about it	[reply]