diff --git a/src/os/sh.php b/src/os/sh.php
index 2ffbe02..810c739 100644
--- a/src/os/sh.php
+++ b/src/os/sh.php
@@ -1,6 +1,7 @@
 <?php
 namespace nur\sery\os;
 
+use nur\path;
 use nur\sery\cl;
 use nur\sery\ExitError;
 use nur\sery\StateException;
@@ -313,4 +314,51 @@ class sh {
     if (!is_link($f) || !is_link($g)) return false;
     return @readlink($f) === @readlink($g);
   }
+
+  #############################################################################
+
+  static function ls_all(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
+    $all = scandir($dir, $sorting_order);
+    if ($all === false) return [];
+    return array_values(array_filter($all,
+      function ($file) use ($pattern) {
+        if ($file === "." || $file === "..") return false;
+        return $pattern === null || fnmatch($pattern, $file);
+      }
+    ));
+  }
+
+  static function ls_dirs(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
+    return array_values(array_filter(self::ls_all($dir, $pattern, $sorting_order),
+      function ($file) use ($dir) {
+        return path::is_dir(path::join($dir, $file));
+      }
+    ));
+  }
+
+  static function ls_files(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
+    return array_values(array_filter(self::ls_all($dir, $pattern, $sorting_order),
+      function ($file) use ($dir) {
+        return path::is_file(path::join($dir, $file));
+      }
+    ));
+  }
+
+  static function ls_pall(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
+    return array_map(function(string $name) use ($dir) {
+      return path::join($dir, $name);
+    }, self::ls_all($dir, $pattern, $sorting_order));
+  }
+
+  static function ls_pdirs(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
+    return array_map(function(string $name) use ($dir) {
+      return path::join($dir, $name);
+    }, self::ls_dirs($dir, $pattern, $sorting_order));
+  }
+
+  static function ls_pfiles(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
+    return array_map(function(string $name) use ($dir) {
+      return path::join($dir, $name);
+    }, self::ls_files($dir, $pattern, $sorting_order));
+  }
 }