[文件操作] [分享]批处理删除电脑重复文件 供交流学习

@echo off&setlocal ENABLEDELAYEDEXPANSION

title 清理相同的文件-code by rs369007/2014/6/20
:start
set /p act_path=输入目录=
if not exist "!act_path!" (echo 输入目录不存在,请重新输入&ping -w 1000 -n 2 127.1>nul 2>nul&cls&goto start)
set /a var=!time:~6,-3! 2>nul
set /a total=0 2>nul
set /a del_num=0 2>nul
set "sort=C:\WINDOWS\system32\sort.exe"
for /f "delims=\" %%j in ("!act_path!") do set backup_folder="%%j\rs-backup_folder\!var!"&md !backup_folder! 2>nul
set tmp=c:\tmp&rd !tmp!>nul 2>nul
if not exist !tmp! (md "!tmp!">nul 2>nul) else (del /f /s /q "!tmp!">nul 2>nul)
set rec_file="!backup_folder!\清理记录.txt"
set /a hour=!time:~0,-9! 2>nul
set /a minute=!time:~3,-6! 2>nul
set /a second=!time:~6,-3! 2>nul


echo.&echo 程序正在对文件进行分类,请耐心等待...
::分类获取文件列表
pushd "!act_path!"
	
for /R %%i in (*) do (
	set extension=%%~xi&set extension=!extension:~-3!
	echo %%~zi;%%~dpnxi;%%~xi;%%~ti;%%~ni>>"!tmp!\!extension!%%~zi.txt" 2>nul
	)	 
::分类获取完成	
						
pushd "!tmp!"
	
::开始比较，记录重复文件，记录复件，而不记录原件

cls&echo.&echo 开始筛选相同文件...&ping -w 1000 -n 2 127.1>nul 2>nul
echo !date!!time!>!rec_file! 2>nul

for /R %%i in (*) do (
	set filename=%%~nxi
	set /a st_count=0
	for /f "tokens=1-5 delims=;" %%j in (!filename!) do (
		set /a st_count+=1
		if !st_count! NEQ !del_num! (
		set filesize=%%j
		set filetime=%%m
		set in_filename=%%n
		set fullpath=%%k
		set /a nd_count=0
		echo %%k 2>nul
		for /f "tokens=1-5 delims=;" %%j in (!filename!) do ( 
		set /a nd_count+=1 
		if !nd_count! GTR !st_count! (
		if "!filesize!"=="%%j" (
		if "!filetime!"=="%%m" (
			echo !in_filename!>tmp 2>nul
			(findstr /C:"%%n" tmp>nul 2>nul&&(echo !fullpath!;!filesize!>>!rec_file! 2>nul))||(echo %%k;%%j>>!rec_file! 2>nul)		
			set /a del_num=!nd_count!
			) 
			)
			)
			)
			)
			)
			)

pushd !backup_folder!
cls&echo.&echo 开始删除相同文件:&ping -w 1000 -n 2 127.1>nul 2>nul

if exist 清理记录.txt (
	for /f "skip=1 tokens=1-2 delims=;" %%j in (清理记录.txt) do (
	copy "%%j" "!backup_folder!">nul 2>nul
	del /f /s /q "%%j"
	set /a total+=%%k
	) 
	) else (
	echo 没有发现相同的文件。)

echo.&echo (存放在!rec_file!) 2>nul&echo.
set /a total=!total!/1024
set /a total=!total!/1024 
echo 一共帮助你清理!total!MB 2>nul


set /a o_hour=!time:~0,-9! 2>nul
set /a o_minute=!time:~3,-6! 2>nul
set /a o_second=!time:~6,-3! 2>nul

set /a o_hour=!o_hour!-!hour! 2>nul
set /a o_minute=!o_minute!-!minute! 2>nul
set /a o_second=!o_second!-!second! 2>nul
if !o_hour! LSS 0 (set /a o_hour=!o_hour!+24)
if !o_minute! LSS 0 (set /a o_minute=!o_minute!+60&set /a o_hour=!o_hour!-1)
if !o_second! LSS 0 (set /a o_second=!o_second!+60&set /a o_minute=!o_minute!-1)


echo 清理耗时:!o_hour! 小时 !o_minute! 分钟 !o_second! 秒 2>nul
rem 删除自身临时文件.
del /f /s /q "!tmp!">nul 2>nul
rem 删除空文件夹
for /f "tokens=*" %%a in ('dir /b /ad /s "!act_path!"^|!sort! /r') do rd "%%a" 2>nul
rd !tmp!>nul 2>nul
echo 清理结束.&pause>nul
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