diff --git a/cleanup b/cleanup
index 3046948..1ac5e51 100755
--- a/cleanup
+++ b/cleanup
@@ -11,18 +11,18 @@ if (isset($options['exclude'])) {
 }
 
 if (isset($options['h']) || isset($options['help'])) {
-    echo "Cleaning composer vendor directory".PHP_EOL.PHP_EOL;
+    echo "Cleaning composer vendor directory" . PHP_EOL . PHP_EOL;
 
-    echo "\e[0;33mUsage:\e[0m".PHP_EOL;
-    echo "  command [options] [arguments]".PHP_EOL.PHP_EOL;
+    echo "\e[0;33mUsage:\e[0m" . PHP_EOL;
+    echo "  command [options] [arguments]" . PHP_EOL . PHP_EOL;
 
-    echo "\e[0;33mOptions:\e[0m".PHP_EOL;
-    echo "  \e[0;32m-h, --help    \e[0m  Display this help message".PHP_EOL;
-    echo "  \e[0;32m-i, --include \e[0m  Add patterns for common files, comma separated".PHP_EOL;
-    echo "  \e[0;32m-e, --exclude \e[0m  Remove patterns for common files, comma separated".PHP_EOL.PHP_EOL;
+    echo "\e[0;33mOptions:\e[0m" . PHP_EOL;
+    echo "  \e[0;32m-h, --help    \e[0m  Display this help message" . PHP_EOL;
+    echo "  \e[0;32m-i, --include \e[0m  Add patterns for common files, comma separated" . PHP_EOL;
+    echo "  \e[0;32m-e, --exclude \e[0m  Remove patterns for common files, comma separated" . PHP_EOL . PHP_EOL;
 
-    echo "\e[0;33mExample:\e[0m".PHP_EOL;
-    echo "  ./vendor/bin/cleanup --include *.lock,*.txt --exclude doc,docs,test".PHP_EOL;
+    echo "\e[0;33mExample:\e[0m" . PHP_EOL;
+    echo "  ./vendor/bin/cleanup --include *.lock,*.txt --exclude doc,docs,test" . PHP_EOL;
     return;
 }
 
@@ -32,36 +32,34 @@ $patterns = [
     '.github',
     'test',
     'tests',
-    'Tests',
     'travis',
     'demo',
     'example',
     'examples',
     'doc',
     'docs',
-    'README*',
-    'LICENSE*',
-    'CHANGELOG*',
-    'CHANGES*',
-    'FAQ*',
-    'CONTRIBUTING*',
-    'HISTORY*',
-    'UPGRADING*',
-    'UPGRADE*',
+    'license*',
+    'changelog*',
+    'changes*',
+    'faq*',
+    'contributing*',
+    'history*',
+    'upgrading*',
+    'upgrade*',
     'package*',
     'readme*',
-    'Dockerfile',
-    '.scrutinizer',
     'phpunit.xml*',
     'phpunit.php',
-    'phpunit',
+    'phpunit*',
     '*.yml',
     '*.md',
     '*.xml',
     '.php_cs*',
+    '.scrutinizer',
     '.gitignore',
     '.gitattributes',
     '.editorconfig',
+    'dockerfile',
     'composer.json',
     'composer.lock',
 ];
@@ -73,44 +71,76 @@ if (isset($options['i'])) {
 if (isset($options['e'])) {
     $patterns = array_diff($patterns, explode(',', $options['e']));
 }
-
-function expandTree($dir) {
+/**
+ * Recursively traverses the directory tree
+ *
+ * @param  string $dir
+ * @return array
+ */
+function expandTree($dir)
+{
     $directories = [];
     $files = array_diff(scandir($dir), ['.', '..']);
     foreach($files as $file) {
-        $directory = $dir.'/'.$file;
+        $directory = $dir . '/' . $file;
         if(is_dir($directory)) {
             $directories[] = $directory;
             $directories = array_merge($directories, expandTree($directory));
         }
     }
+
     return $directories;
 }
 
-
-function delTree($dir) {
+/**
+ * Recursively deletes the directory
+ *
+ * @param  string $dir
+ * @return bool
+ */
+function delTree($dir)
+{
     $files = array_diff(scandir($dir), ['.', '..']);
     foreach ($files as $file) {
-        (is_dir($dir.'/'.$file)) ? delTree($dir.'/'.$file) : unlink($dir.'/'.$file);
+        (is_dir($dir . '/' . $file)) ? delTree($dir . '/' . $file) : unlink($dir . '/' . $file);
     }
+
     return rmdir($dir);
 }
 
+/**
+ * Prepare word
+ *
+ * @param  string $matches
+ * @return string
+ */
+function prepareWord($matches)
+{
+    return '[' . strtolower($matches[1]) . strtoupper($matches[1]) . ']';
+}
+
 $directories = expandTree(dirname(dirname(__DIR__)));
 
-foreach ($patterns as $pattern) {
-    foreach ($directories as $directory) {
-        foreach (glob($directory .'/'. $pattern) as $file) {
+foreach ($directories as $directory) {
+    foreach ($patterns as $pattern) {
+
+        $casePattern = preg_replace_callback('/([a-z])/i', 'prepareWord', $pattern);
+
+        foreach (glob($directory . '/' . $casePattern) as $file) {
+
+            if (pathinfo($file, PATHINFO_EXTENSION) === 'php') {
+                continue;
+            }
 
-            echo 'delete: '.$file.PHP_EOL;
+            echo 'delete: ' . $file . PHP_EOL;
 
             if (is_dir($file)) {
                 delTree($file);
             } else {
-               unlink($file);
+                unlink($file);
             }
         }
     }
 }
 
-echo 'success'.PHP_EOL;
+echo 'success' . PHP_EOL;