Your data contains

Srv_0A,xxxxxxxxx,,xxxxxxxxxxx
Srv_0A,,,
Srv_0A,,,xxxxxxxxxxxxxx

[download]

Should that be

Srv_0A,xxxxxxxxx,,xxxxxxxxxxx
Srv_0A,,,
Srv_0A,,xxxxxxxxxxxxxx,

[download]

If so,

use strict;
use warnings;

my %data;

while (<DATA>) {
   s/^\s+//;
   s/\s+$//;

   my @fields = split(/\s*,\s*/);

   my $server = shift(@fields);
   $data{$server} ||= ['', '', ''];

   # Merge data.
   foreach (0..$#fields) {
      $data{$server}[$_] = $fields[$_]
         if length $fields[$_];
   }
}

print(join(',', $_, @{$data{$_}}), "\n")
   foreach keys(%data);

__DATA__
Srv_0A,Axxxxxxxx,,Bxxxxxxxxxx
Srv_0A,,,
Srv_0G,,,
Srv_0B,Cxxxxxxxxx,,Dxxxxxxxx
Srv_0A,,Exxxxxxxxxxxxx,
Srv_0G,Fxxxxxxxxxx,Gxxxxxxxxxxxxx,
Srv_0B,,Hxxxxxxxxxxxxx,

[download]

If not, how do you merge the two Commission Dates?

In reply to Re: Consolidating data from lots of different sources by ikegami
in thread Consolidating data from lots of different sources by blackadder

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