#!/bin/sh

# RenameFileBasedOnDate.sh
# Thu Jan  1 23:35:14 PST 2009
# Chieh Cheng
# http://www.CynosureX.com/

# GNU General Public License (GPL) Version 2, June 1991

  scriptName=`basename "$0"`

  usage ()
  {
    echo "  Usage:   ${scriptName} \"file 1\" [ . . . \"file N\" ]"
  }

  if [ $# -gt 0 ]
  then
    for file do
      if [ -f "${file}" ]
      then
        extension=`Extension.sh "${file}"`
        dateStamp=`FileDate.sh "${file}"`
        dirName=`dirname "${file}"`
        newName="${dirName}/${dateStamp}.${extension}"

        if [ "${file}" = "${newName}" ]
        then
          echo "${file} is already in date/time format."
        else
          printf "${file} -> "
          mv "${file}" "${newName}"
          echo "${newName}"
        fi
      else
        echo "${file} not found!"
      fi
    done
  else
    usage
  fi