Re: BATCH rename files using a criterion txt file?
tinfanide wrote:
Code:
@echo off
setlocal enabledelayedexpansion
< "log.log" (for /f "delims=" %%a in ('dir *.txt /b /o:n') do (
set var=
set /p "var="
if defined var echo ren "%%a" "!var!%%~xa"
)
)
pause
First, what's the use of the redirect output operator?
It is redirecting INPUT into the for loop. For each iteration of the for loop a line of the log.log text file is provided as input in the for loop.
The
set /p "var=" command accepts this unusual form of input and you can use it inside the loop.
the
set var= command initialises the variable for various reasons. If there are more *.txt files than lines in log.log then the variable would otherwise remember the last line of input.
Quote:
The FOR loop is inside a ()
This enables the use of redirecting input into the for in do loop.
