lxzzr

find /v "[" a.txt
复制代码

namejm

@echo off
findstr /bv "[" test.txt>result.txt
start result.txt
复制代码

Lumiere

@echo off
for /f "eol=[ delims=" %%a in (a.txt) do echo %%a>>b.txt
pause>nul
复制代码