Код:

@echo off
set FILE=console\file.txt
set LINE=ex_interp *\".*\"
findstr /xvirc:"%LINE%" "%FILE%" >"%~dpn0.tmp"
move /y "%~dpn0.tmp" "%FILE%"
Код:

@echo off
set FILE=console\file.txt
set LINE=ex_interp *\".*\"
findstr /xirc:"%LINE%" "%FILE%" >"%~dpn0.tmp"
move /y "%~dpn0.tmp" "%FILE%"