diff --git a/scan.php b/scan.php
index b2158f9..095c445 100644
--- a/scan.php
+++ b/scan.php
@@ -69,16 +69,31 @@ class MalwareScanner
         if ($cli === true) {
             //Read Run Options
             $this->parseArgs();
-            $this->dir = realpath($this->dir);
+
+            $dirs = array();
+            if (is_array($this->dir)) {
+                // allow multiple directory aka. array
+                foreach ($this->dir as $path) {
+                    $dirs[] = realpath($path);
+                }
+            } elseif ($bpos = strpos($this->dir, '{')) {
+                // Check path has a "brace", expand it to subdirectories
+                foreach (glob($this->dir, GLOB_BRACE) as $path) {
+                    $dirs[] = realpath($path);
+                }
+            } else {
+                // only one directory specified
+                $dirs = array (realpath($this->dir));
+            }
 
             //Make sure a directory was specified.
-            if ($this->dir === '') {
+            if (empty($dirs)) {
                 $this->error('No directory specified or directory doesn\'t exist');
                 exit(-1);
             }
 
             //Initiate Scan
-            if (!$this->run($this->dir)) {
+            if (!$this->run($dirs)) {
                 exit(-1);
             }
         }
@@ -592,18 +607,11 @@ class MalwareScanner
      * - Fetch and load combined whitelist
      * - Calls the process and report functions.
      *
-     * @param $dir
+     * @param string|array $dir A directory path or a list of paths in array
      * @return bool
      */
     public function run($dir)
     {
-        // Make sure the input is a valid directory path.
-        $dir = rtrim($dir, '/');
-        if (!is_dir($dir)) {
-            $this->error('Specified path is not a directory: ' . $dir);
-            return false;
-        }
-
         $this->initializePatterns();
 
         $this->loadWhitelist();
@@ -613,9 +621,23 @@ class MalwareScanner
         }
 
         $start = time();
-        $this->process($dir . '/');
+
+        if (!is_array($dir)) {
+            $dir = array ($dir);
+        }
+
+        foreach ($dir as $path) {
+            // Make sure the input is a valid directory path.
+            $path = rtrim($path, '/');
+            if (!is_dir($path)) {
+                $this->error('Specified path is not a directory: ' . $path);
+                return false;
+            }
+            $this->process($path . '/');
+        }
+
         if (!$this->flagDisableStats) {
-            $this->report($start, $dir . '/');
+            $this->report($start, implode(', ', $dir));
         }
         return true;
     }