中国DOS联盟

Originally posted by ily2013 at 2009-8-12 10:11:
sed

@echo off

setlocal enabledelayedexpansion

for /f "tokens=1,2 delims=:" %%a in ('findstr /n "\<NULL\>" *.txt') do (

    if not defined #%%~na (

        set #%%~na=.

        set /a n=%%b-1

        more +!n! "%%a" > .temp

        move .temp "%%a"

    )

)