Shell脚本，用法如下

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./batch_rename.sh FOLDER -old OLD_STR -new NEW_STR

batch_rename.sh

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#!/bin/bash

folder=$1

if [ ! -d $folder ]; then
    echo "缺少目录"
    exit    
fi

shift

while echo $1 | grep ^- > /dev/null; do
    eval $( echo $1 | sed 's/-//g' | tr -d '\012')=$2
    shift
    shift
done

files=`find ${folder} | grep ${old}`
for file in $files; do
    mv "$file" "${file//${old}/${new}}"
done