#!/usr/bin/perl

use strict;
use warnings;

use Data::Dump 'pp';
use Data::Dumper;

my $file_name = "file.txt";

open my $lines, '<', $file_name
  or die "Can't open file $file_name, $!";

my @parms = qw( date day name );

while (my $line = <$lines>) {
   chomp $line;
   
   my $data;
   
   ( $data->{ date }, $data->{ day }, $data->{ name } ) = split(/,/, $line);
   
   print "\n $data->{ date }, $data->{ day }, $data->{ name }\n";
   
   pp @{ $data }{ (@parms) };
}