In a batch file, is it possible to replace this use of SED and TR with a for loop ?

Question

the batch file:

@echo.
@set curdrive=%~d0
@path | %curdrive%\utils\sed -e "s/PATH=//" | %curdrive%\utils\tr ; \n
@echo.

Sample output (one path element on each line):

C:\cheeso\bin
C:\Perl\bin
c:\utils
C:\Windows\system32
C:\Windows
C:\Windows\System32\Wbem
c:\Program Files\Microsoft SQL Server\90\Tools\binn\
c:\.net3.5
c:\.net2.0
c:\vs2008\common7\IDE
c:\netsdk2.0\bin

This batch file depends on the sed.exe and the tr.exe from UnxUtils. I'd like to do the same thing using only built-in commands and programs that are included with Windows. Can I do it? Hints?

Answer 1

Warning, abuse of recursion ahead:

@echo off

call :one "%PATH%"
goto :eof

:one
for /f "tokens=1,* delims=;" %%i in (%1) do (
    echo %%i
    if not "%%j"=="" call :one "%%j"
)

Answer 2

Here's a non-recursive version. Not really better, but I felt like looking for another solution:

SETLOCAL ENABLEDELAYEDEXPANSION ENABLEEXTENSIONS
:again
FOR /F "delims=;" %%I IN ("%PATH%") DO ECHO %%I & SET PATH=!PATH:%%I;=!
IF DEFINED PATH GOTO :again
ENDLOCAL

I believe that this will only work for Windows XP, 2003 Server, and newer.

Answer 3

I started to use this:

@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION ENABLEEXTENSIONS
set tpath=%path%;
echo.
:again
FOR /F "delims=;" %%I IN ("%TPATH%") DO (
  echo    %%I 
  set TPATH=!TPATH:%%I;=!
)
IF DEFINED TPATH GOTO :again

ENDLOCAL

But then decided this was simpler:

setlocal
set _path="%PATH:;=" "%"
for %%p in (%_path%) do if not "%%~p"=="" echo     %%~p
endlocal

Answer 4

I tried this on my Windows 2003 server and it worked. Here is the contents of my showpath.cmd:

@echo off
for %%p in (%PATH%) do echo %%p

Answer 5

setlocal
SET _Path="%Path:;=";"%"
FOR %%a IN (%_Path%) DO ECHO     %%~a
endlocal