How to insert the output of a command to variable in a batch file?

Question

Inside a batch file on Windows I would like some variable to have the output of dir /b command.

How this can be achieved ?

Answer 1

@ECHO OFF
setlocal enabledelayedexpansion
set LF=^


rem ** The two empty lines are NECESSARY
set output=
FOR /F %%i in ('dir /b') do SET output=!output!!LF!%%i
ECHO !output!