G'day Monks,
I am for the first time trying to understand how to hash hashes but I am not getting it...seems I don't have enough nerve cells firing correctly to get it from the meager examples I have seen...I have a set of data that in a specific format which I have included a sample below...then below it is my first attempt to understand the proper format of how to code a multi layered associative array...but I can't even get pass the syntax error on line 32 where I am trying to define the associative array...if I could get help just understanding the proper repeatable tree to build a multi layered associated array it would be GREATLY appreciated...thanks for your attention and help in advance.
Data Set: 
wspmon03/DISK.ssd123/DSKAvgServ
     Wed Nov 30 00:01:27 2006 7.34562
     Wed Nov 30 00:02:29 2006 3.31222
     Wed Nov 30 00:03:33 2006 1.23511
     Wed Nov 30 00:04:23 2006 4.97532
     Wed Nov 30 00:05:37 2006 5.31112
     Wed Nov 30 00:06:36 2006 6.22991
wspmon03/DISK.ssd126/DSKAvgServ
     Wed Nov 30 00:01:27 2006 7.34562
     Wed Nov 30 00:02:29 2006 3.31222
     Wed Nov 30 00:03:33 2006 1.23511
     Wed Nov 30 00:04:23 2006 4.97532
     Wed Nov 30 00:05:37 2006 5.31112
     Wed Nov 30 00:06:36 2006 6.22991
wspmon03/DISK.ssd129/DSKAvgServ
     Wed Nov 30 00:01:27 2006 7.34562
     Wed Nov 30 00:02:29 2006 3.31222
     Wed Nov 30 00:03:33 2006 1.23511
     Wed Nov 30 00:04:23 2006 4.97532
     Wed Nov 30 00:05:37 2006 5.31112
     Wed Nov 30 00:06:36 2006 6.22991

[download]

Code Attempt - my idea is to create a hash called %host where $inst (Disk Instance) is the key along with the $count (Number of Data Points) where Instance.Count are the key to each key of dayofweek, month, date, timing, year, dpoint...if I am over thinking this or completely missing the obvious please someone slap me so I understand...and thanks may I have another?
:-) 
#!/usr/local/bin/perl 
use Data::Dumper;
use strict;

# filename like wspmon03.DSKAvgServ.log
my $filename = $ARGV[0];

(my $hostname, my $parameter) = split("\.", $filename, 2);

open(FDAT, $filename) || die "Can't open file: $filename - $!\n";

my $count = 0;

my $inst = "";

my $previous_inst = "dummy";

while(<FDAT>)
{
    if (/.*\/DISK\.(.*)\/.*/)
    {
        my $inst = $1;
    }
    else
    {
        if ($previous_inst ne $inst)
        { 
            $count = 0;
            $previous_inst = $inst;
        }
        (my $dayofweek, my $month, my $date, my $timing, my $year, my 
+$dpoint) = split();
        my %host ( $inst, $count  => { 'dayofweek' => $dayofweek, 'mon
+th' => $month, 'date' => $date, 'timing' => $timing, 'year' => $year,
+ 'dpoint' => $dpoint } );
        $count=$count+1;
    }
}
        
print Dumper(%host);

close (FDAT);

[download]

In reply to How to Hash Hashes by onegative

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