diff --git a/pages/linux/chattr.md b/pages/linux/chattr.md
index 15430a652d..889ae9abf5 100644
--- a/pages/linux/chattr.md
+++ b/pages/linux/chattr.md
@@ -14,3 +14,11 @@
 - Recursively make an entire directory and contents immutable:
 
 `chattr -R +i {{path/to/directory}}`
+
+- Mark a directory and its files to be interpreted in a case-insensitive manner:
+
+`chattr +F {{path/to/directory}}`
+
+- Set a file to only allow appending:
+
+`chattr +a {{path/to/file}}`