[Georgio]

Код:

@echo off
>nul chcp 1251

set "file=1.txt"
set "search=Мама мыла раму."
set "n=99"

(
for /f "delims=" %%i in ('
 ^<"%file%" find/i /n "%search%"^| findstr/bl [%n%]
') do (
 set x=%%i
 >nul chcp 866
 cmd/v/c echo[!x:*]^^=!
)
)|| echo Not found.

pause>nul
exit/b