diff --git a/install/cli.php b/install/cli.php
new file mode 100644
index 0000000000..ede4f82546
--- /dev/null
+++ b/install/cli.php
@@ -0,0 +1,102 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2019 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+if (substr(php_sapi_name(), 0, 3) != 'cli') die('The file can be run only via CLI.');
+
+$options = getopt("a:d:");
+
+if (empty($options['a'])) {
+    fwrite(\STDOUT, "Error: the option [-a] is required.\n");
+    exit;
+}
+
+$allPostData = [];
+
+if (!empty($options['d'])) {
+    parse_str($options['d'], $allPostData);
+
+    if (empty($allPostData) || !is_array($allPostData)) {
+        fwrite(\STDOUT, "Error: Incorrect input data.\n");
+        exit;
+    }
+}
+
+$action = $options['a'];
+$allPostData['action'] = $action;
+
+chdir(dirname(__FILE__));
+set_include_path(dirname(__FILE__));
+require_once('../bootstrap.php');
+
+$_SERVER['SERVER_SOFTWARE'] = 'Cli';
+
+require_once('core/PostData.php');
+$postData = new PostData();
+$postData->set($allPostData);
+
+require_once('core/InstallerConfig.php');
+$installerConfig = new InstallerConfig();
+
+if ($installerConfig->get('isInstalled')) {
+    fwrite(\STDOUT, "Error: EspoCRM is already installed.\n");
+    exit;
+}
+
+if (!$installerConfig->get('cliSessionId')) {
+    session_start();
+    $installerConfig->set('cliSessionId', session_id());
+    $installerConfig->save();
+}
+
+$sessonId = session_id($installerConfig->get('cliSessionId'));
+
+ob_start();
+
+try {
+    require('install/index.php');
+} catch (\Throwable $e) {
+    fwrite(\STDOUT, "Error: ". $e->getMessage() .".\n");
+    exit;
+}
+
+$result = ob_get_contents();
+ob_end_clean();
+
+if (preg_match('/"success":false/i', $result)) {
+    $resultData = json_decode($result, true);
+    if (empty($resultData)) {
+        fwrite(\STDOUT, "Error: Unexpected error occurred.\n");
+        exit;
+    }
+
+    fwrite(\STDOUT, "Error: ". (!empty($resultData['errors']) ? print_r($resultData['errors'], true) : $resultData['errorMsg']) .".\n");
+    exit;
+}
+
+fwrite(\STDOUT, "Done.\n");
diff --git a/install/core/Installer.php b/install/core/Installer.php
index 621f722fd0..dc76f03f40 100644
--- a/install/core/Installer.php
+++ b/install/core/Installer.php
@@ -248,29 +248,33 @@ class Installer
      * @param  string $language
      * @return bool
      */
-    public function saveData($database, $language)
+    public function saveData(array $saveData)
     {
         $initData = include('install/core/afterInstall/config.php');
-        $siteUrl = $this->getSystemHelper()->getBaseUrl();
         $databaseDefaults = $this->app->getContainer()->get('config')->get('database');
 
         $data = [
-            'database' => array_merge($databaseDefaults, $database),
-            'language' => $language,
-            'siteUrl' => $siteUrl,
+            'database' => array_merge($databaseDefaults, $saveData['database']),
+            'language' => $saveData['language'],
+            'siteUrl' => !empty($saveData['siteUrl']) ? $saveData['siteUrl'] : $this->getSystemHelper()->getBaseUrl(),
             'passwordSalt' => $this->getPasswordHash()->generateSalt(),
             'cryptKey' => $this->getContainer()->get('crypt')->generateKey(),
             'hashSecretKey' => \Espo\Core\Utils\Util::generateSecretKey(),
         ];
 
-        $owner = $this->getFileManager()->getPermissionUtils()->getDefaultOwner(true);
-        $group = $this->getFileManager()->getPermissionUtils()->getDefaultGroup(true);
-
-        if (!empty($owner)) {
-            $data['defaultPermissions']['user'] = $owner;
+        if (empty($saveData['defaultPermissions']['user'])) {
+            $saveData['defaultPermissions']['user'] = $this->getFileManager()->getPermissionUtils()->getDefaultOwner(true);
         }
-        if (!empty($group)) {
-            $data['defaultPermissions']['group'] = $group;
+
+        if (empty($saveData['defaultPermissions']['group'])) {
+            $saveData['defaultPermissions']['group'] = $this->getFileManager()->getPermissionUtils()->getDefaultGroup(true);
+        }
+
+        if (!empty($saveData['defaultPermissions']['user'])) {
+            $data['defaultPermissions']['user'] = $saveData['defaultPermissions']['user'];
+        }
+        if (!empty($saveData['defaultPermissions']['group'])) {
+            $data['defaultPermissions']['group'] = $saveData['defaultPermissions']['group'];
         }
 
         $data = array_merge($data, $initData);
diff --git a/install/core/PostData.php b/install/core/PostData.php
new file mode 100644
index 0000000000..7afe6c0bbb
--- /dev/null
+++ b/install/core/PostData.php
@@ -0,0 +1,45 @@
+<?php
+
+class PostData
+{
+    protected $data = [];
+
+    public function __construct()
+    {
+        $this->init();
+    }
+
+    protected function init()
+    {
+        if (isset($_POST) && is_array($_POST)) {
+            $this->data = $_POST;
+        }
+    }
+
+    public function set($name, $value = null)
+    {
+        if (!is_array($name)) {
+            $name = [
+                $name => $value
+            ];
+        }
+
+        foreach ($name as $key => $value) {
+            $this->data[$key] = $value;
+        }
+    }
+
+    public function get($name, $default = null)
+    {
+        if (array_key_exists($name, $this->data)) {
+            return $this->data[$name];
+        }
+
+        return $default;
+    }
+
+    public function getAll()
+    {
+        return $this->data;
+    }
+}
diff --git a/install/core/actions/applySett.php b/install/core/actions/applySett.php
index 2f50532782..a24f412219 100644
--- a/install/core/actions/applySett.php
+++ b/install/core/actions/applySett.php
@@ -25,13 +25,13 @@
  *
  * In accordance with Section 7(b) of the GNU General Public License version 3,
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
- ************************************************************************/ 
+ ************************************************************************/
 
 ob_start();
 $result = array('success' => true, 'errorMsg' => '');
 
 // save settings
-$data = array(
+$database = array(
     'driver' => 'pdo_mysql',
     'dbname' => $_SESSION['install']['db-name'],
     'user' => $_SESSION['install']['db-user-name'],
@@ -41,10 +41,22 @@ $host = $_SESSION['install']['host-name'];
 if (strpos($host,':') === false) {
         $host .= ":";
 }
-list($data['host'], $data['port']) = explode(':', $host);
+list($database['host'], $database['port']) = explode(':', $host);
 
-$lang = (!empty($_SESSION['install']['user-lang']))? $_SESSION['install']['user-lang'] : 'en_US';
-if (!$installer->saveData($data, $lang)) {
+$saveData = [
+    'database' => $database,
+    'language' => !empty($_SESSION['install']['user-lang']) ? $_SESSION['install']['user-lang'] : 'en_US',
+    'siteUrl' => !empty($_SESSION['install']['site-url']) ? $_SESSION['install']['site-url'] : null,
+];
+
+if (!empty($_SESSION['install']['default-permissions-user']) && !empty($_SESSION['install']['default-permissions-group'])) {
+    $saveData['defaultPermissions'] = [
+        'user' => $_SESSION['install']['default-permissions-user'],
+        'group' => $_SESSION['install']['default-permissions-group'],
+    ];
+}
+
+if (!$installer->saveData($saveData)) {
     $result['success'] = false;
     $result['errorMsg'] = $langs['messages']['Can not save settings'];
 }
diff --git a/install/core/actions/settingsTest.php b/install/core/actions/settingsTest.php
index aa55131437..a9a571c453 100644
--- a/install/core/actions/settingsTest.php
+++ b/install/core/actions/settingsTest.php
@@ -50,16 +50,18 @@ foreach ($phpRequiredList as $name => $details) {
     }
 }
 
-if ($result['success'] && !empty($_REQUEST['dbName']) && !empty($_REQUEST['hostName']) && !empty($_REQUEST['dbUserName'])) {
+$allPostData = $postData->getAll();
+
+if ($result['success'] && !empty($allPostData['dbName']) && !empty($allPostData['hostName']) && !empty($allPostData['dbUserName'])) {
     $connect = false;
 
-    $dbName = trim($_REQUEST['dbName']);
-    if (strpos($_REQUEST['hostName'],':') === false) {
-        $_REQUEST['hostName'] .= ":";
+    $dbName = trim($allPostData['dbName']);
+    if (strpos($allPostData['hostName'],':') === false) {
+        $allPostData['hostName'] .= ":";
     }
-    list($hostName, $port) = explode(':', trim($_REQUEST['hostName']));
-    $dbUserName = trim($_REQUEST['dbUserName']);
-    $dbUserPass = trim($_REQUEST['dbUserPass']);
+    list($hostName, $port) = explode(':', trim($allPostData['hostName']));
+    $dbUserName = trim($allPostData['dbUserName']);
+    $dbUserPass = trim($allPostData['dbUserPass']);
 
     $databaseParams = [
         'host' => $hostName,
@@ -84,7 +86,7 @@ if ($result['success'] && !empty($_REQUEST['dbName']) && !empty($_REQUEST['hostN
         $databaseRequiredList = $installer->getSystemRequirementList('database', true, ['database' => $databaseParams]);
 
         foreach ($databaseRequiredList as $name => $details) {
-            if (!$details['acceptable']) {            
+            if (!$details['acceptable']) {
 
                 switch ($details['type']) {
                     case 'version':
diff --git a/install/index.php b/install/index.php
index 9b6cf968b1..aeac787710 100644
--- a/install/index.php
+++ b/install/index.php
@@ -27,11 +27,23 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-session_start();
-require_once('../bootstrap.php');
+if (session_status() !== \PHP_SESSION_ACTIVE) {
+	session_start();
+}
+
+if (file_exists('../bootstrap.php')) {
+	require_once('../bootstrap.php');
+}
+
+if (!isset($postData)) {
+	require_once('core/PostData.php');
+	$postData = new PostData();
+}
+
+$allPostData = $postData->getAll();
 
 //action
-$action = (!empty($_POST['action']))? $_POST['action'] : 'main';
+$action = (!empty($allPostData['action']))? $allPostData['action'] : 'main';
 require_once('core/Utils.php');
 if (!Utils::checkActionExists($action)) {
 	die('This page does not exist.');
@@ -40,8 +52,8 @@ if (!Utils::checkActionExists($action)) {
 // temp save all settings
 $ignoredFields = array('installProcess', 'dbName', 'hostName', 'dbUserName', 'dbUserPass', 'dbDriver');
 
-if (!empty($_POST)) {
-	foreach ($_POST as $key => $val) {
+if (!empty($allPostData)) {
+	foreach ($allPostData as $key => $val) {
 		if (!in_array($key, $ignoredFields)) {
 			$_SESSION['install'][$key] = trim($val);
 		}
@@ -64,7 +76,7 @@ $systemHelper = new SystemHelper();
 
 $systemConfig = include('application/Espo/Core/defaults/systemConfig.php');
 if (isset($systemConfig['requiredPhpVersion']) && version_compare(PHP_VERSION, $systemConfig['requiredPhpVersion'], '<')) {
-    die(str_replace('{minVersion}', $systemConfig['requiredPhpVersion'], $sanitizedLangs['messages']['phpVersion']) . '.');
+    die(str_replace("{minVersion}", $systemConfig['requiredPhpVersion'], $sanitizedLangs['messages']['phpVersion']) . ".\n");
 }
 
 if (!$systemHelper->initWritable()) {
@@ -74,7 +86,7 @@ if (!$systemHelper->initWritable()) {
 	$message = str_replace('{*}', $dir, $message);
 	$message = str_replace('{C}', $systemHelper->getPermissionCommands(array($dir, ''), '775'), $message);
 	$message = str_replace('{CSU}', $systemHelper->getPermissionCommands(array($dir, ''), '775', true), $message);
-	die($message);
+	die($message . "\n");
 }
 
 require_once ('install/vendor/smarty/libs/Smarty.class.php');