[server1]
/tmp/location1/file.log
/tmp/location2/file.log
[server2]
/usr/loc1/file.log
/usr/loc2/file.log
[server3]
/citrix/dir3/file.log


##</code><code>##

server1:/tmp/location1/file.log,tmp/location2/file.log
server2:/usr/loc1/file.log,/usr/loc2/file.log
server3:/citrix/dir3/file.log

##</code><code>##

#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;

my @lines;
my @data;


open (my $file, '<', 'log') or die $!;
while (my $line = <$file>)
{
        if ($line =~ /\[(.*)\]/)
        {
                push (@lines, $1);
                next;
        }

        if ($line =~ /(\/.*)/)
        {
                push (@data, $1);
                next;
        }


}

my $val = join(",",@data);
close $file;

foreach(@lines){
        print "$_:$val\n";