diff --git a/_gtfobins/tee.md b/_gtfobins/tee.md
new file mode 100644
index 0000000..f3fc36d
--- /dev/null
+++ b/_gtfobins/tee.md
@@ -0,0 +1,16 @@
+---
+description: It can only append data if the destination exists.
+functions:
+  sudo-enabled:
+    - code: |
+        LFILE=file_to_write
+        echo data | sudo tee -a "$LFILE"
+  suid-enabled:
+    - code: |
+        LFILE=file_to_write
+        echo data | ./tee -a "$LFILE"
+  file-write:
+    - code: |
+        LFILE=file_to_write
+        echo data | ./tee -a "$LFILE"
+---