windows environment variables home directory
@echo off
set dirname=""
set dirname=%*
set orig_dirname=%*
:: remove quotes - will re-attach later.
set dirname=%dirname:\"=%
set dirname=%dirname:/"=%
set dirname=%dirname:"=%
:: restore dirnames that contained only "/"
if "%dirname%"=="" set dirname=%orig_dirname:"=%
:: strip trailing slash, if longer than 3
if defined dirname if NOT "%dirname:~3%"=="" (
if "%dirname:~-1%"=="\" set dirname="%dirname:~0,-1%"
if "%dirname:~-1%"=="/" set dirname="%dirname:~0,-1%"
)
set dirname=%dirname:"=%
:: if starts with ~, then replace ~ with userprofile path
if %dirname:~0,1%==~ (
set dirname="%USERPROFILE%%dirname:~1%"
)
set dirname=%dirname:"=%
:: replace forward-slashes with back-slashes
set dirname="%dirname:/=\%"
set dirname=%dirname:"=%
chdir /D "%dirname%"