- @echo off
- for /f "delims=" %%a in ('findstr /n .* a.txt') do (
- set /a n=0
- set "str=%%a"
- setlocal enabledelayedexpansion
- set str= !str:*:=!
- for %%i in (a b c) do (
- if not "!str!"=="!str:%%i=!" set /a n+=1
- )
- if !n! equ 3 (echo !str:~1!d) else echo;!str:~1!
- endlocal
- )
- pause
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