Also have a look at Cache::FileCache: 
  my $hostname = 'foo.bar.example.com'
  use Cache::FileCache;
  my $cache = new Cache::FileCache( { 'namespace' => 'HostInfo',
                                      'default_expires_in' => 600 } );
  my $cacheKey = $hostname;
  my $host_info = $cache->get( $cacheKey );
  if ( not defined $host_info )
  {
    $customer = get_host_info_as_hashref( $hostname );
    $cache->set( $cacheKey, $host_info, "10 minutes" );
  }
  return $host_info;

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In reply to Re: How to save and reload my hash by davidrw
in thread How to save and reload my hash by lepetitalbert

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