batch file %cd% doesn't changed after changing current working directory

Question

I wrote a batch file (windows os) that prints current working directory using %CD%, but even I change the current directory , the value of %CD% doesn't changed. This strange behavior happens to me in context of "IF" statement.

Here is a snapshot of the folders and the batch file Test.bat

I call the batch file from dir3.

It works ok if the code is as follows :

@echo off 
@echo %CD%
cd /d c:\temp\dir1
@echo %CD%

but in the follow code it doesn't work as shown in the snapshot of the prompt window. Even after changing the current working directory it prints the first one - c:\temp\dir3.

@echo off 
if exist "c:\bom" (
   @echo file exist already
) else (
@echo %CD%
cd /d c:\temp\dir1
@echo %CD%
)

Answer 1

So you are lacking delayedexpansion here. Here are 2 ways though:

@echo off 
setlocal enabledelayedexpansion
if exist "c:\bom" (
  @echo file exist already
) else (
  @echo !CD!
  cd /d c:\temp\dir1
  @echo !CD!
)

or just use cd without echoing the variable %cd%

@echo off 
if exist "c:\bom" (
  @echo file exist already
) else (
  cd
  cd /d c:\temp\dir1
  cd
)