diff --git a/README b/README
index 8d5ba67..ce81039 100755
--- a/README
+++ b/README
@@ -6,8 +6,11 @@
 
 cd $( dirname $0 )/bin
 
-( 
+(
+echo Add the tools to PATH by sourcing the "rc" in this folder
+ 
 for e in *; do
+   test -x $e || continue
    echo -e "\n===== $e =====\n"
    ./$e -h
 done
diff --git a/rc b/rc
new file mode 100644
index 0000000..a4d0cf9
--- /dev/null
+++ b/rc
@@ -0,0 +1,12 @@
+# source me to enable tools
+
+TOOLSPATH=$( readlink -f $( dirname "$BASH_SOURCE" ) )
+
+PATH=$PATH:"$TOOLSPATH"/bin
+
+# remove duplicate path
+PATH=$( echo $PATH | awk -F: '{for (i=1;i<=NF;i++) { if ( !x[$i]++ ) printf("%s:",$i); }}' | sed 's,:\+$,,g' )
+export PATH
+
+. "$TOOLSPATH"/qcd_function
+