diff --git a/free-programming-interactive-tutorials-en.md b/free-programming-interactive-tutorials-en.md
index ae816a1917d455cbe65cf5854dd941e0b4fdd5f6..f080d5bff54f507db2e6e9d65aa4c13cf92f7f79 100644
--- a/free-programming-interactive-tutorials-en.md
+++ b/free-programming-interactive-tutorials-en.md
@@ -32,6 +32,7 @@
 
 ### Bash
 
+* [Help messages will explain everything](https://explainshell.com)
 * [Learn Shell Programming](http://www.learnshell.org)