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Full Discussion: Script to remove line by line
Top Forums Shell Programming and Scripting Script to remove line by line Post 302702025 by agama on Monday 17th of September 2012 07:43:24 PM
Old 09-17-2012
It would help to know what the command syntax that you are running to determine whether or not the file is spam, and more importantly if it indicates that it is spam via exit code, or message or some other mechanism.

Modulo some real information like that, guessing that the command reads the file and exits bad (non-zero) if the message is considered spam, then this might do what you want:

Code:
cp foo.txt foo.1

while [[ -s foo.1 ]]
do
    sed '$d' foo.1 >foo.2     # chop last line
    mv foo.2 foo.1
    if ! spam_test_command foo.1                             
    then
        break
    fi
done

It creates a temporary file that is one line less than the time before and invokes some magic spam command on the file. Assuming that if the command fails it means the file is spam, it will exit leaving the last tested email in foo.1.

If this isn't quite the situation, then post how you are testing for spam and someone will probably offer up a suggestion based on that.
This User Gave Thanks to agama For This Post:
chewku
 

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LEARN ABOUT CENTOS

mail::spamassassin::plugin::spamcop

Mail::SpamAssassin::Plugin::SpamCop(3)			User Contributed Perl Documentation		    Mail::SpamAssassin::Plugin::SpamCop(3)

NAME

       Mail::SpamAssassin::Plugin::SpamCop - perform SpamCop reporting of messages

SYNOPSIS

	 loadplugin	Mail::SpamAssassin::Plugin::SpamCop

DESCRIPTION

       SpamCop is a service for reporting spam.  SpamCop determines the origin of unwanted email and reports it to the relevant Internet service
       providers.  By reporting spam, you have a positive impact on the problem.  Reporting unsolicited email also helps feed spam filtering
       systems, including, but not limited to, the SpamCop blacklist used in SpamAssassin as a DNSBL.

       Note that spam reports sent by this plugin to SpamCop each include the entire spam message.

       See http://www.spamcop.net/ for more information about SpamCop.

USER OPTIONS

       spamcop_from_address user@example.com   (default: none)
	   This address is used during manual reports to SpamCop as the From: address.	You can use your normal email address.	If this is not
	   set, a guess will be used as the From: address in SpamCop reports.

       spamcop_to_address user@example.com   (default: generic reporting address)
	   Your customized SpamCop report submission address.  You need to obtain this address by registering at "http://www.spamcop.net/".  If
	   this is not set, SpamCop reports will go to a generic reporting address for SpamAssassin users and your reports will probably have less
	   weight in the SpamCop system.

       spamcop_max_report_size	 (default: 50)
	   Messages larger than this size (in kilobytes) will be truncated in report messages sent to SpamCop.	The default setting is the maximum
	   size that SpamCop will accept at the time of release.

perl v5.16.3							    2011-06-06				    Mail::SpamAssassin::Plugin::SpamCop(3)
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