i read up on reference and understand a scalar is assigned as reference :

my @array = (1, 2, 3, 'four');
    my $reference = \@array;

[download]

i modified using your suggestion as below

foreach $line (@lines){
            chomp $line;
            $count++;
            next unless $count; 
            my @row = ();
            @row = split(/,/, $line );
            push @sheet2 , \@row;
        }

        foreach my $row ( sort {$a->[0] cmp $b->[0] || $a->[1] cmp $b-
+>[1]}  @sheet2 )             #sorting based on date ,then stockcode
        {          
            chomp $row;
            print hanw join (',', @$row ),"\n";
        }

[download]

then why assign @sheet2 as reference

In reply to Re^2: what is @$varname in perl by sandy105
in thread what is @$varname in perl by sandy105

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