#!/bin/bash
#遍历/tmp/test/目录下以.txt后缀结尾的文件
for i in `find /tmp/test/ -type f -name "*.txt"`
do
        echo "重命名前：echo $i"
        mv $i `echo $i|sed 's/txt/sh/'`

#for sql in `find /tmp/test -name "*.txt"`;do  mv $sql `echo $sql|sed  's/txt/sh/'` ;done

done

for j in `find /tmp/test/ -type f -name "*.sh"`
do
        echo "重命名后的文件名：echo $j"
done