diff --git a/build/cmake/rentidy.sh b/build/cmake/rentidy.sh
new file mode 100755
index 0000000..c4e63a1
--- /dev/null
+++ b/build/cmake/rentidy.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+#< rentidy.sh - 20160201
+BN=`basename $0`
+
+ask()
+{
+    pause
+    if [ ! "$?" = "0" ]; then
+        exit 1
+    fi
+}
+
+TMPEXE="/usr/bin/tidy"
+if [ ! -f "$TMPEXE" ]; then
+    echo "$BN: Can not locate '$TMPEXE'"
+    exit 1
+fi
+# tidy -v
+$TMPEXE -v
+if [ ! "$?" = "0" ]; then
+    echo "$BN: Can not run $TMPEXE!"
+    exit 1
+fi
+TMPVER=`$TMPEXE -v | awk '{ print $6 }'`
+# echo "$BN: Version $TMPVER"
+TMPFIL2="$TMPEXE-$TMPVER"
+if [ -f "$TMPFIL2" ]; then
+    echo "$BN: New name already exists!"
+    exit 1
+fi
+echo "$BN: Rename $TMPEXE to $TMPFIL2?"
+
+ask
+
+sudo mv $TMPEXE $TMPFIL2
+
+
+# eof
+