diff --git a/README.md b/README.md
index 7419e44..dfff35d 100644
--- a/README.md
+++ b/README.md
@@ -136,6 +136,18 @@ var_dump (
 )
 ```
 
+#### Filesystem::getPagePathsByPath
+
+Return pages under the given data directory
+
+```
+var_dump (
+    $filesystem->getPagePathsByPath(
+        // absolute path to target data directory (e.g. Filesystem::getDirectoryPathByUri)
+    )
+)
+```
+
 #### Filesystem::getDirectoryPathByUri
 #### Filesystem::getPagePathByUri
 
diff --git a/src/Dokuwiki/Filesystem.php b/src/Dokuwiki/Filesystem.php
index 1f02170..407684a 100644
--- a/src/Dokuwiki/Filesystem.php
+++ b/src/Dokuwiki/Filesystem.php
@@ -32,6 +32,16 @@ class Filesystem
         return $this->_list;
     }
 
+    public function getPagePathsByPath(string $path): ?array
+    {
+        if (isset($this->_tree[$path]))
+        {
+            return $this->_tree[$path];
+        }
+
+        return null;
+    }
+
     public function getPagePathByUri(string $uri): ?string
     {
         $path = sprintf(