Question

请教：怎么用批处理删除当前目录下所有文本文件中指定字符串所在行之前的的内容（包括字符串所在行）？

Answer 1

@echo off
set fx=*.txt
set "sx=指定字符串"
for /f "delims=" %%i in ('dir/b %fx%')do (
echo %%i
set "n="
for /f "delims=:" %%j in ('findstr/nc:"%sx%" "%%i"')do set/a n=%%j
if defined n (
call more +%%n%% "%%i">temp.yky
move temp.yky "%%i")
)
pause