Remove leading zeroes from all files in current directory

trimmer.bat

@echo off
SetLocal EnableDelayedExpansion
for %%a in (*) do (
call :DeleteLeadingZeros %%a
if not exist !NewName! (ren %%a !NewName!)
)
exit /b

:DeleteLeadingZeros %1
for /f "tokens=* delims=0" %%a in ("%1") do (set NewName=%%a)
exit /b

REM credit goes to the site below for the original work
REM http://www.computing.net/answers/programming/bat-to-cut-leading-zeros-from-file-names/23653.html