一个比较“子文件夹差异”的 DOS 批处理脚本

@echo off
setlocal
set dircmd=/ad /on /b

if not exist old.txt (
dir > old.txt
goto lblEndLocal
)

echo. > log.txt
dir > new.txt
echo N | comp old.txt new.txt
echo.

if "%errorlevel%" == "0" (
goto lblEndLocal
)

echo -------------------------------------- >> log.txt
echo 已删除的文件夹： >> log.txt
for /F "tokens=*" %%o in (old.txt) do (
call :lblSubProcessDeleted "%%o"
)

echo. >> log.txt
echo -------------------------------------- >> log.txt
echo 新增的文件夹： >> log.txt
for /F "tokens=*" %%n in (new.txt) do (
call :lblSubProcessAdded "%%n"
)

copy /y new.txt old.txt

REM 发送邮件
if defined CYGWIN_HOME (
%CYGWIN_HOME%/bin/email --version
if "%ERRORLEVEL%" == "0" (
%CYGWIN_HOME%/bin/email --subject "文件夹有变化" account@domain.com < log.txt
) else (
echo 未安装 email 工具
)
) else (
echo 未安装 cygwin 仿 unix 环境
)

:lblEndLocal
endlocal
goto :EOF

:lblSubProcessDeleted
findstr /x /c:%1 new.txt > NUL
REM echo %errorlevel%
if "%errorlevel%" == "0" (
REM echo "%~1 found in new.txt!"
) else (
REM echo %~1 not found in new.txt! it's DELETED
echo 	%1 >> log.txt
)
goto :EOF

:lblSubProcessAdded
findstr /x /c:"%~1" old.txt > NUL
REM echo %errorlevel%
if "%errorlevel%" == "0" (
REM echo %~1 found in old.txt!
) else (
REM echo %~1 not found in old.txt! it's ADDED
echo 	%1 >> log.txt
)
goto :EOF