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Full Discussion: conditional email
Top Forums Shell Programming and Scripting conditional email Post 302172846 by ricky007 on Tuesday 4th of March 2008 11:24:13 PM
Old 03-05-2008
Bug conditional email

Some one please help me: I need to perl code for a conditional block:

I believe I need to put the $email->send; command in a conditional block that checks if $duplicate_ip or $duplicate_host is defined, and then send the email. How can I do that:

use strict;
use warnings;
use MIME::Lite;
my (%ip, %host, $duplicate_ip, $duplicate_host, @linevals, $outline);
my $host_file = '/etc/hosts';
open my $file, '<', $host_file or die "can't open $host_file $!";
while (<$file>) {
chop;
if( my ($ip, $host) = /^#?([\d.]+)\s+(\S+)/ ) {
@linevals = split;
$outline = $linevals[0] . "\t" . $linevals[1] . "\n";
push @{$ip{$ip}}, $outline;
push @{$host{$host}}, $outline;
}
}
close $file;
#print "Duplicate IP's with hostnames\n";
foreach my $ip ( keys %ip ) {
if ( @{$ip{$ip}} > 1 ) {
$duplicate_ip .= join ('', @{$ip{$ip}}) . "\n\n";

}
}
#print "\nDuplicate hostnames with IP's\n";
foreach my $host ( sort keys %host ) {
if ( @{$host{$host}} > 1 ) {
my ($ip) = $host{$host}[0] =~ /^#?([\d.]+)/;
unless ( @{$ip{$ip}} > 1 ) {
$duplicate_host .= join('', @{$host{$host}}) . "\n\n";
}
}
}

my $email_msg = <<EMAIL_MSG;
The following entries in the host file are duplicates
either by IP address or by hostname.
Duplicate IP addresses:
$duplicate_ip
Duplicate Hostnames:
$duplicate_host
EMAIL_MSG
print $email_msg;
my $email = MIME::Lite->new(
From => 'xxx@xxx.com',
To => 'xxxx@xxx.com',
#Cc => 'xxx@xx.com,xxxx@att.com',
Subject => 'Host file duplicates',
Data => $email_msg
);
$email->send
 

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R2E(1)							      General Commands Manual							    R2E(1)

NAME
r2e - receive RSS feeds by email SYNOPSIS
r2e [-d dir] action [options] DESCRIPTION
r2e is a simple program which you can run in your crontab. It watches RSS feeds and sends you nicely formatted email message for each new item. The program is configured by ~/.rss2email/config.py by default. To use a different config file in a different directory, you can specify the -d option before any actions. For a quick start with r2e, try these steps: r2e new your@address r2e add http://feed.url/somewhere.rss r2e run The last command should eventually be put into your crontab, if you want things be sent you automatically. It is possible to use authenticated feeds using the following syntax: r2e add http://user:password@example.com/feed ACTIONS
new [youremail] Create a new feedfile. If the second option is specified, it sets the default email address that mails are sent to. add url [youremail] Subscribe to a feed. The first option is the URL of the feed. The optional second option is the email address to send new items to. Repeat for each feed you want to subscribe to. run [--no-send] [num] Scan the feeds and send emails for new items. This can be run in a cron job. The --no-send option stops r2e from sending any email. This can be useful the first time you run it, as otherwise it would send every available story. If a number is specified, r2e will only download that feed. The list command lists the feed numbers. email yournewemail Change the default email address. list List all your currently subscribed feeds. delete n Delete a feed, using its number from the list command. pause n Temporarily ignore a feed. A paused feed won't be updated at all. unpause n Re-enable updates from a feed. opmlimport url Import feeds from an OPML file. opmlexport Export feeds to standard output, as an OPML file. CONFIGURATION
The program's behavior can be controlled via the ~/.rss2email/config.py config file. The file is a python file, so variables are set using a syntax like this: VARIABLE = "value" If the value is a number, the quotes may be omitted. Most configuration variables in the file are boolean values, where a 1 indicates the option is set, and a 0 disables it. See the example config.py file for a full list of available configuration variables. FILES
~/.rss2email/feeds.dat The database of feeds. Use r2e to add, remove, or modify feeds, do not edit it directly. ~/.rss2email/config.py If this file exists, it it read to configure the program. AUTHOR
Aaron Swartz <rss2email@aaronsw.com> R2E(1)
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