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Benjamin Renard
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check_backuppc
Executable file
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check_backuppc
Executable file
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#!/usr/bin/perl
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#
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# check_backuppc: a Nagios plugin to check the status of BackupPC
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#
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# Tested against BackupPC 3.2.1 and Nagios 3
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# <http://backuppc.sourceforge.net>
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# <http://nagios.org>
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#
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# AUTHORS
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# Benjamin Renard <brenard@easter-eggs.com>
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#
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# Fork from check_backuppc 1.1.0 write by Seneca Cunningham
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# <tetragon@users.sourceforge.net>.
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#
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# COPYRIGHT
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# Copyright (C) 2013 Easter-eggs
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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use strict;
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no utf8;
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# Nagios
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use lib "/usr/lib/nagios/plugins";
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use utils qw(%ERRORS $TIMEOUT);
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use POSIX qw(strftime difftime);
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use Getopt::Long;
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Getopt::Long::Configure('bundling');
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# BackupPC
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use lib "/usr/share/backuppc/lib";
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use BackupPC::Lib;
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my $version = '1.1.1';
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my $warnDaysOld = 2;
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my $critDaysOld = 7;
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my $verbose = 0;
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my $opt_V = 0;
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my $opt_h = 0;
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my $goodOpt = 0;
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my @ownerOnly;
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my @hostsDesired;
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my @hostsExcluded;
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# Process options
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$goodOpt = GetOptions(
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'v+' => \$verbose, 'verbose+' => \$verbose,
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'c=f' => \$critDaysOld, 'critical=f' => \$critDaysOld,
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'w=f' => \$warnDaysOld, 'warning=f' => \$warnDaysOld,
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'o=s' => \@ownerOnly, 'owner=s' => \@ownerOnly,
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'V' => \$opt_V, 'version' => \$opt_V,
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'h' => \$opt_h, 'help' => \$opt_h,
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'H=s' => \@hostsDesired, 'hostname=s' => \@hostsDesired,
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'x=s' => \@hostsExcluded, 'exclude=s' => \@hostsExcluded);
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@hostsDesired = () if $#hostsDesired < 0;
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@hostsExcluded = () if $#hostsExcluded < 0;
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if ($opt_V)
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{
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print "check_backuppc - " . $version . "\n";
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exit $ERRORS{'OK'};
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}
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if ($opt_h or not $goodOpt)
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{
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print "check_backuppc - " . $version . "\n";
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print "A Nagios plugin to check on BackupPC backup status.\n\n";
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print "Options:\n";
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print " --hostname,-H only check the specified host\n";
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print " --exclude,-x do not check the specified host\n";
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print " --owner,-o do only hosts of specified user\n";
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print " --warning,-w days old of last good backup to cause a warning\n";
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print " --critical,-c days old of last good backup to be critical\n";
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print " --verbose,-v increase verbosity\n";
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print " --version,-V display plugin version\n";
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print " --help,-h display this message\n\n";
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exit $ERRORS{'OK'} if $goodOpt;
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exit $ERRORS{'UNKNOWN'};
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}
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if ($warnDaysOld > $critDaysOld)
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{
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print("BACKUPPC UNKNOWN - Warning threshold must be <= critical\n");
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exit $ERRORS{'UNKNOWN'};
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}
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# Connect to BackupPC
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my $server;
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if (!($server = BackupPC::Lib->new))
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{
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print "BACKUPPC CRITICAL - Couldn't connect to BackupPC\n";
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exit $ERRORS{'CRITICAL'};
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}
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my %Conf = $server->Conf();
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$server->ChildInit();
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my $err = $server->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
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if ($err)
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{
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print("BACKUPPC UNKNOWN - Can't connect to server ($err)\n");
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exit $ERRORS{'UNKNOWN'};
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}
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my %Status;
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# query the BackupPC server for host status
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my $status_raw = $server->ServerMesg('status hosts');
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my $hosts_infos = $server->HostInfoRead();
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# undump the output... BackupPC uses Data::Dumper
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eval $status_raw;
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# check the dumped output
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my $hostCount = 0;
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my $errorLevel='OK';
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foreach my $host (@hostsDesired, @hostsExcluded)
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{
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if (not grep {/$host/} keys(%Status))
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{
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print("BACKUPPC UNKNOWN - Unknown host ($host)\n");
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exit $ERRORS{'UNKNOWN'};
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}
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}
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my @problems;
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# host status checks
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foreach my $host (sort(keys(%Status)))
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{
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next if $host =~ /^ /;
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my $owner = $hosts_infos->{$host}->{user};
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next if (@ownerOnly and not grep {/$owner/} @ownerOnly);
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my %host_conf = %{$server->ConfigDataRead($host)};
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next if ( $host_conf{BackupsDisable} );
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next if (@hostsDesired and not grep {/$host/} @hostsDesired);
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next if (@hostsExcluded and grep {/$host/} @hostsExcluded);
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next if ($Status{$host}{'type'} eq 'archive');
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$hostCount++;
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# Debug
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if ($verbose == 2)
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{
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print "Host $host state " . $Status{$host}{'state'} . "\n";
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print " with reason: " . $Status{$host}{'reason'} . "\n";
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print " with error: " . $Status{$host}{'error'} . "\n";
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print " with owner: $owner\n\n";
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}
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# Check host error
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if ($Status{$host}{'error'})
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{
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# Check connectivity errors with greater care
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if ($Status{$host}{'error'} ne 'ping too slow' &&
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$Status{$host}{'error'} ne 'no ping response' &&
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$Status{$host}{'error'} ne 'no ping response' &&
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$Status{$host}{'error'} ne 'host not found' &&
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$Status{$host}{'reason'} !~ /Reason_restore_failed/) {
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push @problems, "$host error : ".$Status{$host}{'error'}." / ".$Status{$host}{'reason'};
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next;
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}
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}
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# Check last good backup time
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my $difftime=difftime(time(), $Status{$host}{'lastGoodBackupTime'});
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my $diffdays=$difftime/(3600 * 24);
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$Status{$host}{'lastGoodBackupTime'} = $Status{$host}{'startTime'} if (not $Status{$host}{'lastGoodBackupTime'});
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if ($difftime > ($critDaysOld * 3600 * 24))
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{
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push @problems, "$host : last good backup have ".sprintf("%.1f",$diffdays)." days";
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$errorLevel='CRITICAL';
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}
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elsif ($difftime > ($warnDaysOld * 3600 * 24))
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{
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push @problems, "$host : last good backup have ".sprintf("%.1f",$diffdays)." days";
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$errorLevel='WARNING' if ($errorLevel eq 'OK');
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}
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}
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my $problemTxt="";
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if (scalar(@problems) > 0) {
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if ($verbose > 0) {
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foreach my $pbl (@problems) {
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if ($problemTxt ne "") {
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$problemTxt.=" , ";
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}
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else {
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$problemTxt=" ( ";
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}
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$problemTxt.=$pbl;
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}
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$problemTxt.=" )";
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}
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else {
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$problemTxt=" (".scalar(@problems)." problems)";
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}
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}
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print "BACKUPPC $errorLevel$problemTxt\n";
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exit $ERRORS{$errorLevel};
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