diff --git a/samples/mode/.gitignore b/samples/mode/.gitignore
new file mode 100644
index 0000000..a10e0c8
--- /dev/null
+++ b/samples/mode/.gitignore
@@ -0,0 +1 @@
+/0*
diff --git a/samples/mode/create.sh b/samples/mode/create.sh
new file mode 100755
index 0000000..b0aaf35
--- /dev/null
+++ b/samples/mode/create.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -ex
+
+rm -f 0*
+for umode in 4 5 6 7
+do
+    for gmode in 0 4 5 6 7
+    do
+        for amode in 0 4 5 6 7
+        do
+            mode="0${umode}${gmode}${amode}"
+            touch "${mode}"
+            chmod "${mode}" "${mode}"
+        done
+    done
+done
+