How to convert the value of %USERNAME% to lowercase within a Windows batch script?

Question

I\'m automating some source control software functionality using a dot bat script but given that our svn repos are hosted in a *NIX box, I\'m facing the eternal case problem

Answer 1

Probably this is the fastest way to convert a string to lowercase in batch file as it uses macro and there are no temp files (it saves the produced string in variable called result):

@echo off

set LowerCaseMacro=for /L %%n in (1 1 2) do if %%n==2 (for %%# in (a b c d e f g h i j k l m n o p q r s t u v w x y z) do set "result=!result:%%#=%%#!") else setlocal enableDelayedExpansion ^& set result=

set "string=SOme STrinG WiTH lowerCAse letterS and UPCase leTTErs"
%LowerCaseMacro%%string%

echo %result%