yes it is a typo

here is where i should get the data

AMS.csv

1,Go,Manuel,V.,1/22/2015,8:30AM,5:30PM,1001
2,Calinisan,Peter,S.,1/22/2015,8:30AM,5:30PM,1002
3,Sioting,Michael,S.,1/22/2015,8:30AM,5:30PM,1003

1,2002
2,2001
3,2003

1001,IT
1002,HR
1003,PURCHASING
[download]

to become PPS.csv

2002,Go,Manuel,V.,1/22/2015,8:30AM,5:30PM,IT
2001,Calinisan,Peter,S.,1/22/2015,8:30AM,5:30PM,HR
2003,Sioting,Michael,S.,1/22/2015,8:30AM,5:30PM,PURCHASING
[download]

I had made my initial scripting here but it generally duplicates it

use strict;
use warnings;
use Text::CSV;
use Data::Dump qw(dump);

my @data;   # 2D array for CSV data
my $file = 'AMS.csv';

my $csv = Text::CSV->new({ binary => 1, quote_null => 0 });
open my $fh, '<', $file or die "Could not open $file: $!";

while( my $column = $csv->getline( $fh ) ) { 
#shift @$column;
push @data, $column;
}

open $fh, ">:encoding(utf8)", "PPS.csv" or die "PPS.csv: $!";
for (@data) {
$csv->print($fh, $_);
print $fh "\n";
}
close $fh or die "PPS.csv: $!";
[download]

Try

use strict;
use warnings;
use Text::CSV;

my @data;   # 2D array for CSV data
my %dict=();

my $file = 'AMS.csv';
my $csv = Text::CSV->new({ binary => 1, quote_null => 0 });
open my $fh, '<', $file or die "Could not open $file: $!";

while( my $ar = $csv->getline( $fh ) ) { 
  if (@$ar > 2){
    push @data,$ar;
  } elsif (@$ar == 2) {
    $dict{$ar->[0]} = $ar->[1];    
  }
}

open $fh, ">:encoding(utf8)", "PPS.csv" or die "PPS.csv: $!";
for my $ar (@data) {
  $ar->[0] = $dict{$ar->[0]};
  $ar->[-1] = $dict{$ar->[-1]};
  $csv->print($fh, $ar);
  print $fh "\n";
}
close $fh or die "PPS.csv: $!";
[download]

poj

Hi edrew04, here is a working version. The newly added lines are marked with '###'.

use strict;
use warnings;
use Text::CSV;

my @data;   # 2D array for CSV data
my $file = 'AMS.csv';

my %dept_code = (          ###
  1001 => 'IT',            ###
  1002 => 'HR',            ###
  1003 => 'PURCHASING',    ###
);

my $csv = Text::CSV->new({ binary => 1, quote_null => 0 });
open my $fh, '<', $file or die "Could not open $file: $!";

while( my $column = $csv->getline( $fh ) ) {
  push @data, $column;
}


open $fh, ">:encoding(utf8)", "PPS.csv" or die "PPS.csv: $!";
for (@data) {
  $_->[0] += 2000;                    ###
  $_->[7] = $dept_code{$_->[7]};      ###
  $csv->print($fh, $_);
  print $fh "\n";
}
close $fh or die "PPS.csv: $!";
[download]

i tried executing it but it yields the ff. error:

C:\Users\user\Desktop\perl>perl test4.pl
Argument "" isn't numeric in addition (+) at test4.pl line 24, <$fh> l
+ine 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Argument "" isn't numeric in addition (+) at test4.pl line 24, <$fh> l
+ine 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
[download]

i tried executing it but it yields the ff. error:

C:\Users\user\Desktop\perl>perl test4.pl
Argument "" isn't numeric in addition (+) at test4.pl line 24, <$fh> l
+ine 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Use of uninitialized value in hash element at test4.pl line 25, <$fh> 
+line 11.
Argument "" isn't numeric in addition (+) at test4.pl line 24, <$fh> l
+ine 11.
[download]