diff --git a/c/code/hello.world.c b/c/code/hello.world.c
new file mode 100644
index 0000000..f9e62f5
--- /dev/null
+++ b/c/code/hello.world.c
@@ -0,0 +1,7 @@
+#include<stdio.h>
+
+int main(void)
+{
+	printf("hello,world!");
+	return 0;
+}
diff --git a/python/code/hello.world.py b/python/code/hello.world.py
new file mode 100644
index 0000000..2b13bfb
--- /dev/null
+++ b/python/code/hello.world.py
@@ -0,0 +1 @@
+print("hello,world!")
diff --git a/shell/code/hello_world.sh b/shell/code/hello_world.sh
new file mode 100755
index 0000000..c9a6e2f
--- /dev/null
+++ b/shell/code/hello_world.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+echo "Hello,world !"