diff --git a/ex01/hello_world.sh b/ex01/hello_world.sh
new file mode 100644
index 0000000..12c3483
--- /dev/null
+++ b/ex01/hello_world.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+if [[ $# -eq 0 ]]
+then
+    echo "Hello, World!"
+else
+    echo "Hello, $1!"
+fi