diff --git a/06/src/1.sh b/06/src/1.sh
new file mode 100755
index 0000000..a7b5bb2
--- /dev/null
+++ b/06/src/1.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+dd conv=notrunc oflag='append' if=data of=data bs=c count=$(wc --bytes < data)
\ No newline at end of file