diff --git a/ex01/ex01.sh b/ex01/ex01.sh
new file mode 100644
index 0000000..347d7fb
--- /dev/null
+++ b/ex01/ex01.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+
+if [-n $1]
+then
+	echo Hello, World!
+else
+	echo Hello, $1!
+fi
\ No newline at end of file