[Foreigner]

magistor.88,

Код:

@echo off
for /f "tokens=*" %%i in (1.txt) do (

   1>>2.txt (
   
    for %%j in (%%i) do 0>nul set /p="%%j"
    echo.

))

[Iska]

Код:

@echo off
setlocal enableextensions enabledelayedexpansion

set sSourceFile=C:\Мои проекты\001\0002.txt

del "~%FileName%.tmp" 2>Nul

>"~%FileName%.tmp" (
	for /f "usebackq delims=" %%i in ("%sSourceFile%") do (
		set sValue=%%i
		echo !sValue: =!
	)
)
Move /Y "~%FileName%.tmp" "%sSourceFile%"

endlocal
exit /b 0