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On 05-Nov-2002/04:07 -0500, RH <[EMAIL PROTECTED]> wrote:
>But in this case I will receive messages not once, but periodically. Is
>there a way, to get mail if it got down, and the next mail when the T1
>line becomes Up and so on. In other words I need a mail message when the
>Line status is changed, but not a massages with the same T1 line status.
The best way to do this would be to have the application itself call a
script when the status changes. Having a script check the logfile every
few minutes would work, but would probably require reading the entire
logfile each time.
The following script is a good faith effort, but has not been tested.
#!/usr/bin/perl
#
# Check logfile for a status changes that occured after the last check.
#
# Specify the name of the log file.
$logfile = '/var/log/programname.log';
# Who gets the email reports.
$recipient = '[EMAIL PROTECTED]';
# Get the date/time of the last time the script was run, using the same
# format as is used in the logfile. This example assumes the script was
# last run 5 minutes ago and that the time is in the Apache logfile time
# format. The extra 2 seconds is designed to give a little overlap so
# that no entries are missed.
$lastdate = `date -d '5 min 2 sec ago' +%d/%b/%Y:%H:%M:%S`;
chomp $lastdate;
# Read the log file and check the most recent lines for status changes.
open(LOGFILE,"$logfile");
while ($line = <LOGFILE>) {
if ($lastdate lt $line) {
# do nothing
} elsif ($line =~ /line is up/) {
chomp $line;
push(@statuschanges,$line);
} elsif ($line =~ /line is down/) {
chomp $line;
push(@statuschanges,$line);
}
}
close(LOGFILE);
# If there are any status changes, send an email notice.
$statuscount = @statuschanges;
if ($statuscount > 0) {
open(MAIL,'|/bin/mail -s "Line status changes" $recipient');
print MAIL "These status changes have been recorded in $logfile\n";
print MAIL "since $lastdate):\n\n";
foreach $statusline (@statuschanges) {
print MAIL "$statusline\n";
}
close(MAIL);
}
exit;
Tony
- --
Anthony E. Greene <mailto:Anthony%20E.%20Greene%20%3Cagreene@;pobox.com%3E>
OpenPGP Key: 0x6C94239D/7B3D BD7D 7D91 1B44 BA26 C484 A42A 60DD 6C94 239D
AOL/Yahoo Messenger: TonyG05 HomePage: <http://www.pobox.com/~agreene/>
Linux. The choice of a GNU generation <http://www.linux.org/>
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