Hello

How can I read a txt file with IP-addresses and grep these IP-addesses from several logfiles and print these result to a file?.

I know that these IP-addresses in IP.TXT exist in the logfiles.
But I want to know which logfile contain these IP-addresses.

I have a file with several IP-addresses like this.
IP.TXT
192.168.1.1
10.10.10.10

and so on

Then I have several logfiles that contain these IP-addresses like this.
FILE1_LOG
1.1.1.1
192.168.1.1
10.10.10.10

FILE2_LOG
2.2.2.2
10.10.11.11
10.10.10.10

and so on

The result I want is like this.
Resultfile.txt
IP 192.168.1.1 is in file FILE1_LOG.
IP 10.10.10.10 is in file FILE2_LOG.

The code so far
(I can read the lines from the logfiles, but dont know how to read in the IP.TXT and grep these). 
use strict;
my $logdir=".";
opendir(LOGS, $logdir) or die ("Cant open $logdir");

my $pattern = '_log';
my @logfiles = grep /$pattern/,(readdir LOGS);
closedir(LOGS);

foreach my $file (sort @logfiles) {
  my $filename = $logdir . "/" . $file;
  open(LOG, $filename);
  my @line = <LOG>;
  if (my @hit = grep /I WANT TO GREP FROM IP.TXT/, @line) {
    chomp(@hit);
    print ("IP @hit is in file $file\n");
  }
}

[download]
Or can I do it another way?

//Anders Andersson

janitored by ybiC: <code> tags

In reply to How can I grep these IP-addresses from these logfiles? by Anonymous Monk

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