diff --git a/apps/ls.cpp b/apps/ls.cpp
index 3ea716d9..65d6b0e3 100644
--- a/apps/ls.cpp
+++ b/apps/ls.cpp
@@ -1,12 +1,18 @@
 #include <os/ArgumentParser.h>
 #include <os/Directory.h>
 #include <os/File.h>
+#include <os/FileSystem.h>
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/stat.h>
 
 Result<int> luna_main(int argc, char** argv)
 {
     StringView pathname;
     bool show_all { false };
     bool show_almost_all { false };
+    bool long_list { false };
 
     os::ArgumentParser parser;
     parser.add_description("List files contained in a directory (defaults to '.', the current directory)"_sv);
@@ -14,19 +20,51 @@ Result<int> luna_main(int argc, char** argv)
     parser.add_positional_argument(pathname, "directory"_sv, "."_sv);
     parser.add_switch_argument(show_all, 'a', "all"_sv, "also list hidden files (whose filename begins with a dot)"_sv);
     parser.add_switch_argument(show_almost_all, 'A', "almost-all"_sv, "list all files except '.' and '..'"_sv);
+    parser.add_switch_argument(long_list, 'l', ""_sv, "use a long listing format"_sv);
     parser.parse(argc, argv);
 
-    auto dir = TRY(os::Directory::open(pathname));
+    Vector<String> files;
+    int dirfd = AT_FDCWD;
+    SharedPtr<os::Directory> dir;
 
-    auto filter = os::Directory::Filter::Hidden;
-    if (show_almost_all) filter = os::Directory::Filter::ParentAndBase;
-    else if (show_all)
-        filter = os::Directory::Filter::None;
+    if (os::FileSystem::is_directory(pathname))
+    {
+        dir = TRY(os::Directory::open(pathname));
+        dirfd = dir->fd();
 
-    auto files = TRY(dir->list(filter));
+        auto filter = os::Directory::Filter::Hidden;
+        if (show_almost_all) filter = os::Directory::Filter::ParentAndBase;
+        else if (show_all)
+            filter = os::Directory::Filter::None;
 
-    auto list = TRY(String::join(files, " "_sv));
-    os::println("%s", list.chars());
+        files = TRY(dir->list(filter));
+    }
+    else
+    {
+        auto str = TRY(String::from_cstring(pathname.chars()));
+        TRY(files.try_append(move(str)));
+    }
+
+    if (!long_list)
+    {
+        auto list = TRY(String::join(files, " "_sv));
+        os::println("%s", list.chars());
+    }
+    else
+    {
+        for (const auto& file : files)
+        {
+            struct stat st;
+            if (fstatat(dirfd, file.chars(), &st, 0) < 0)
+            {
+                perror(file.chars());
+                return 1;
+            }
+
+            os::println("%6o %u %4u %4u %10lu %s", st.st_mode, st.st_nlink, st.st_uid, st.st_gid, st.st_size,
+                        file.chars());
+        }
+    }
 
     return 0;
 }