now, moving on to do more interesting stuff with hashes...I am having problems with new $k and $v to already existing read in hash . can you help debug this piece? where I attempt to check in data2 with already existing hash{key}=$value?? I added this piece to the code which previously loaded the hash from 1st file. 
<data>
uno = uno
due = dos
tre = tres
quattro = quatro
cinque = cinco
<\data>

<data2>
 uno => tree
due => dos
tre => tres
quattro => cinco
cinque => cinco
sei => seis
<\data2>

[download]
use strict;
use warnings;

use Data::Dump qw(dump);
use Storable; #don't know what this does yet.

my %hash;

open my $in, '<',"./test_data.txt" or die ("can't open the file:$!\n")
+;
 
while (<$in>){
    chomp;
    my ($key, $value)= split (/\s*=\s/);
    $hash{$key}=$value;
    }
close $in;

## <new code>

open my $in2,'<',"./test_data2.txt" or die ("can't open file : $!\n");
open my $out ,'>' ,"./test_data_out.txt" or die "can't open the file f
+or write:$1\n";

while (<$in2>){
   chomp;
   my ($key,$value) = split (/\s*=\s/); #splits row into 2 col
   
 #will check if new key,value matches then print to another file for f
+un.
   if exists $hash{$keys}{
       dump \$out;  
       }
    
    }

[download]

In reply to Re^2: why aren't I see the hash while using dump? by perlynewby
in thread why aren't I see the hash while using dump? by perlynewby

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