--- /dev/null
+#!/bin/bash
+
+# Usage:
+# ./rename <file-containing-rename-keys> <files_to_modify ...>
+#
+# Rename keys file contains space-separated lines:
+# <old.key> <new.key>
+
+RENAME="$1"
+shift
+
+cat "$RENAME" | while read line ; do
+
+ FROM=`echo $line | awk '{print $1}'`
+ TO=`echo $line | awk '{print $2}'`
+
+ sed -i "s/$FROM/$TO/g" "$@"
+
+done