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#!/usr/bin/perl
#===============================================================================
#
# FILE: check_file_content.pl
#
# USAGE: ./check_file_content.pl
#
# DESCRIPTION: Nagios plugin to check file content
#
# OPTIONS: ---
# REQUIREMENTS: ---
# BUGS: ---
# NOTES: ---
# AUTHOR: Pierre Mavro (), pierre@mavro.fr
# COMPANY:
# VERSION: 0.1
# CREATED: 10/05/2010 09:25:56
# REVISION: ---
#===============================================================================
use warnings;
use strict;
use Getopt::Long;
my %RETCODES = ('OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3);
# Help
sub help
{
print "Usage : check_file_content.pl -f file -i include -e exclude -n lines_number [-h]\n\n";
print "Options :\n";
print " -f\n\tFull path to file to analyze\n";
print " -n\n\tNumber of lines to find (default is 1)\n";
print " -i\n\tInclude pattern (can add multiple include)\n";
print " -e\n\tExclude pattern (can add multiple include)\n";
print " -h, --help\n\tPrint this help screen\n";
print "\nExample : check_file_content.pl -f /etc/passwd -i 0 -e root -n 5\n";
exit $RETCODES{"UNKNOWN"};
}
sub check_args
{
help if !(@ARGV);
my ($file,@include,@exclude);
my $num=1;
# Set options
GetOptions( "help|h" => \&help,
"f=s" => \$file,
"i=s" => \@include,
"e=s" => \@exclude,
"n=i" => \$num);
unless (($file) and (@include))
{
&help;
}
else
{
check_soft($file,$num,\@include,\@exclude);
}
}
sub check_soft
{
my $file=shift;
my $num=shift;
my $ref_include=shift;
my $ref_exclude=shift;
my @include = @$ref_include;
my @exclude = @$ref_exclude;
my $i=0;
if (!open(FILER, "<$file"))
{
print "Can't open $file: $!\n";
exit $RETCODES{"CRITICAL"};
}
while(<FILER>)
{
chomp($_);
my $line=$_;
my $found=0;
# Should match
foreach (@include)
{
if ($line =~ /$_/)
{
$found=1;
last;
}
}
# Shouldn't match
if (@exclude)
{
foreach (@exclude)
{
if ($line =~ /$_/)
{
$found=0;
last;
}
}
}
$i++ if ($found == 1);
}
close(FILER);
if ($i > 0)
{
if ($i > $num)
{
print "OK for $file ($i found)\n";
exit $RETCODES{"OK"};
}
else
{
print "FAILED on $file. Found only $i on $num\n";
exit $RETCODES{"CRITICAL"};
}
}
else
{
print "FAILED on $file\n";
exit $RETCODES{"CRITICAL"};
}
}
check_args;