#!/usr/bin/perl -w
use strict;
use Config::Tiny;
use Data::Dumper;

my $Config = Config::Tiny->read( 'configtinytest.ini' );
# "_" is the default section (the one with no name)
$Config->{'_'}->{'be_address'} = '192.168.106.55'; 

print Dumper ($Config);

$Config->write( 'configtinytest2.ini' );

__END__

configtinytest.ini:
-------------------
be_address = remote-be-address
be_port = 9000
svs_port = 8733
log = log.txt
verbose = 10
screen_print = true
fe_id = 1
encryption_key = default_encrypt
fe_id_last = 1
mtu = 45K
cpu_throt = 100
bandwidth_throt = 100
system_tray_icon_enable = true
email_notification_level = 10
web_access_enable = true
sync_enable = true
software_settings_interval = true
min_space_for_dist = 30M

configtinytest2.ini:
--------------
bandwidth_throt=100
be_address=192.168.106.55
be_port=9000
cpu_throt=100
email_notification_level=10
encryption_key=default_encrypt
fe_id=1
fe_id_last=1
log=log.txt
min_space_for_dist=30M
mtu=45K
screen_print=true
software_settings_interval=true
svs_port=8733
sync_enable=true
system_tray_icon_enable=true
verbose=10
web_access_enable=true