- @echo off & setlocal enabledelayedexpansion
- (for /f "delims=" %%i in (a.txt) do (
- set m=&set "n="&set "s="
- for %%a in (%%i) do (
- if defined m (
- if defined n (
- if !n! gtr %%a set s=1
- ) else set n=%%a
- ) else set m=%%a
- )
- if not defined s echo;%%i
- ))>b.txt
- pause & exit /b
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