Windows Command 내장 변수들

c:\> echo %OS%
Windows_NT

c:\>echo %USERPROFILE%
C:\Documents and Settings\Administrator

c:\>echo %PATH%
C:\Windows; ...

c:\>echo %PROMPT%
$P$G
----------------- L I S T -----------------
%ALLUSERSPROFILE%
%APPDATA%
%CD%
%CMDCMDLINE%
%CMDEXTVERSION%
%COMPUTERNAME%
%COMSPEC%
%DATE%
%ERRORLEVEL%
%HOMEDRIVE%
%HOMEPATH%
%HOMESHARE%
%LOGONSERVER%
%NUMBER_OF_PROCESSORS%
%OS%
%PATH%
%PATHEXT%
%PROCESSOR_ARCHITECTURE% 
%PROCESSOR_IDENTIFIER%
%PROCESSOR_LEVEL%
%PROCESSOR_REVISION%
%PROMPT%
%RANDOM%
%SYSTEMDRIVE%
%SYSTEMROOT%
%TEMP%
%TMP%
%TIME%
%USERDOMAIN%
%USERNAME%
%USERPROFILE%
%WINDIR%