#!/bin/bash

SAVEIFS=$IFS
export IFS=$'\n';
CDIR=$(pwd)

read -p "starting name to replace: " startold
read -p "starting name to use instead: " startnew

echo "Renaming from ${startold} to ${startnew} ";\

if (pwd | grep -c '\/home\/mobaxterm'); then
   echo "Correct Directory"
   echo " "
else
   echo "Recursive!! Are you sure? CTRL-C to terminate."
#   sleep 2
   echo " "
#   exit 0
fi

for i in `find $CDIR -type d -print`; do
  DIR=$i
  cd "$DIR"
  echo "Inside $DIR :"
 for file in `find . -maxdepth 1 -type f -iname "${startold}*"`; do
     sedstr=`echo "s/${startold}/${startnew}/"`
     newfile=`echo "${file}" | sed ${sedstr}`
     echo "moving ${file} to ${newfile}"
     mv -n ${file}  ${newfile}
  done
  cd "$CDIR"
done

IFS=$SAVEIFS