diff a/hat/scripts/help.java b/hat/scripts/help.java
--- /dev/null
+++ b/hat/scripts/help.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+void main(String[] argArr){
+    IO.println("""
+        ⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣀⣀⣀⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+        ⠀⠀⠀⠀⠀⠀⠀⢰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣶⣤⣀⠀⠀⠀⠀⠀⠀⠀
+        ⠀⠀⠀⠀⠀⠀⠀ ⠙⠿⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠿⠀⠀⠀⠀⠀⠀⠀
+        ⠀⠀⠀⠀⠀⠀⠀⠀⣷⣶⣤⣄⣈⣉⣉⣉⣉⣉⣉⣉⣁⣤⡄⠀⠀⠀⠀⠀⠀⠀
+        ⠀⠀⠀⠀⠀⠀ ⠀⣿⣿⣿⣿⣿ HAT ⣿⣿⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀
+        ⠀⠀⢀⣠⣶⣾⡏⢀⡈⠛⠻⠿⢿⣿⣿⣿⣿⣿⠿⠿⠟⠛⢁⠀⢶⣤⣀⠀⠀⠀
+        ⠀⢠⣿⣿⣿⣿⡇⠸⣿⣿⣶⣶⣤⣤⣤⣤⣤⣤⣤⣶⣶⣿⡿⠂⣸⣿⣿⣷⡄⠀
+        ⠀⢸⣿⣿⣿⣿⣿⣦⣄⡉⠛⠛⠛⠿⠿⠿⠿⠛⠛⠛⢉⣁⣤⣾⣿⣿⣿⣿⡷⠀
+        ⠀⠀⠙⢿⣿⣿⣿⣿⣿⣿⣿⣷⣶⣶⣶⣶⣶⣶⣾⣿⣿⣿⣿⣿⣿⣿⡿⠛⠁⠀
+        ⠀⠀⠀⠀⠈⠙⠛⠿⠿⢿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⠿⠿⠛⠛⠉⠁⠀⠀⠀⠀
+
+         mvn clean: Removed all build artifacts
+
+         mvn clean package: Compile all libs, backends, examples and tests.
+
+         java @.ffi[opencl|cuda]-example -DXXX package.Class args: Run an example using a specific backend:
+
+           Backends selected using
+
+               java @.ffi-opencl-example ...
+               java @.ffi-cuda-example ...
+
+
+               java @.ffi-opencl-example mandel.Main
+
+               If an example takes -DXX options place them before the package.Class
+                   java @.ffi-opencl-example -DSomeOpt=SomeValue mandel.Main
+
+               If an example takes args place them after the package.Class
+                   java @.ffi-opencl-example mandel.Main 4096
+
+               To set HAT env options
+                   HAT=SHOW_CODE java @.ffi-opencl-example nbody.Main 4096
+                   HAT=SHOW_KERNEL_MODEL java @.ffi-opencle-example heal.Main
+                   HAT=MINIMIZE_COPIES java @.ffi-opencl-example life
+
+         java @.[ffi-[opencl|cuda]]-test-suite: Run test suite using a specific backend
+            java @.ffi-opencl-test-suite hat.test.TestMatMul
+
+         java @.[ffi-[opencl|cuda]]-test-suite CLASS#method  : Run a specific Test
+            java @.[ffi-[opencl|cuda]]-test-suite hat.test.TestMatMul
+
+         java @.sanity:  Check source files for copyright and WS issues (tabs and trailing EOL WS)
+        """);
+}
+