initial

tools/insertMyCode.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+if [ ! -f main.c ]; then
+  echo "no main.c available"
+  exit 1
+fi
+if [ -f main.c-bak ]; then
+  echo "main.c-bak already available, delete manually"
+  exit 1
+fi
+
+mv main.c main.c-bak
+cat main.c-bak | ../tools/insertMyCode.pl > main.c
+