Hello monks, I am very perl newbie, I am trying to do a perl script which takes the tcpdump log and counts the number of packets from one ip to another ip within the same port. Right now I have parsed the output of tcpdump and stored in an array. But I dont know how to make a hash to compare the positions in the different array of hashes and I am getting frustrated. My perl script is like this: 
#!/usr/bin/perl
#use strict;
open(TEXT,"dump.txt")or die("Text not found");

while (<TEXT>) {
    if ( /IP\s+(\d+\.\d+\.\d+\.\d+)(\.(\d+))?\s+>\s+(\d+\.\d+\.\d+\.\d
+++)(\.(\d+))?\:\s+(\w+)/ ) {
         my ($srcip, $srcport, $dstip, $dstport, $proto) = ($1, $3, $4
+, $6, $7);
         printf "%16s [%5d] --> %16s [%5d] (%s)\n", $srcip, $srcport, 
+$dstip, $dstport, lc($proto);
    }
}

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In reply to array of arrays of hashes by cotarelo

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