--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bin/gc.sh	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,39 @@
+#!/usr/bin/env php
+<?php
+/*
+ +-----------------------------------------------------------------------+
+ | bin/gc.sh                                                             |
+ |                                                                       |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2013, The Roundcube Dev Team                            |
+ |                                                                       |
+ | Licensed under the GNU General Public License version 3 or            |
+ | any later version with exceptions for skins & plugins.                |
+ | See the README file for a full license statement.                     |
+ |                                                                       |
+ | PURPOSE:                                                              |
+ |   Trigger garbage collecting routines manually (e.g. via cronjob)     |
+ |                                                                       |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ +-----------------------------------------------------------------------+
+*/
+
+define('INSTALL_PATH', realpath(__DIR__ . '/..') . '/' );
+
+require INSTALL_PATH.'program/include/clisetup.php';
+
+$rcmail = rcube::get_instance();
+
+$session_driver   = $rcmail->config->get('session_storage', 'db');
+$session_lifetime = $rcmail->config->get('session_lifetime', 0) * 60 * 2;
+
+// Clean expired SQL sessions
+if ($session_driver == 'db' && $session_lifetime) {
+    $db = $rcmail->get_dbh();
+    $db->query("DELETE FROM " . $db->table_name('session')
+        . " WHERE changed < " . $db->now(-$session_lifetime));
+}
+
+// Clean caches and temp directory
+$rcmail->gc();