Hi guys, I have a data file like this
A,01,Newton,Issac,Physics, 5.6      
B,144.56                            
B,1034.65                           
B,12.23                             
A,34,Einstein,Albert,Physics,12.22  
B,2346.89                           
B,876.23                            
B,7656.81                           
B,745.21                            
B,25.63                             
B,89.56                             
B,7789.23

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This is multiple record data with the definition of the record types being:
Record type A: Type,member number,Surname,Firstname,Job,Balance
Record type B: Type,TransactionAmount
Write a program to: Read the data from the file and populate a data structure that looks like this: 
%accounts = ( 
’78’ => { 
’surname’ => ’Feynman’, 
’firstname’ => ’Richard’, 
’job’ => ’Physics’, 
’balance’ => -17.34, 
’transactions => [ 7412.36, 2589.35, 95.32, 12.85, 789.68 ], 
}, 
’89’ => { 
’surname’ => ’Merx’, 
... 
},

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I have create the structure as above but now I want to refer to one of the values in %accounts to do sth with it. E.G. Add a new transaction '-37' to member 'Feynman'. and Copy all the transactions for Feynman into an array called @trans. How can I do this? I tried sth like this 
#!/usr/bin/perl
use warnings;
use strict;
use Data::Dumper;

my ( $number, %accounts );
while ( <DATA> ) {
    chomp;
    if ( /^A,/ ) {
        ( undef, $number, my @fields ) = split /,/, $_, -1;
        @{ $accounts{ $number } }{ qw/ surname firstname job balance /
+ } = @fields;
        }
    elsif ( /^B,/ ) {
        my $transaction = ( split /,/ )[ 1 ];
        push @{ $accounts{ $number }{ transactions } }, $transaction;
        }
    }


my $account_hash = $accounts->{78};

foreach my $transactions ($account_hash){
    
        push @{ $account_hash{ transactions } }, '-42.37';
    }

print Dumper $account_hash{ transactions };

[download]

In reply to get the value from a refernce array of hash by fseng

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