4} How can I test is it on MSDOS/Win3..9x/Me or NT/2000/XP?
This is one way how to test it:
@echo off
set is_nt=false
echo.>nul & set is_nt=true
:: Show the result
echo is_nt=%is_nt%
It is based on the fact that in NT/2000/XP CMD.EXE "
&" can be used to separate multiple
commands on one command line while in MSDOS/Win3..9x/Me COMMAND.COM
the "&" is not recognized.
Another, very similar option is based on the maximum length of a
label in the various systems:
@echo off
::
goto _1234567
89
:_1234567
set is_nt=false
goto _tell
:
_123456789
set is_nt=true
goto _tell
::
:_tell
echo is_nt=%is_nt%
The output on an XP would be
C:\_D\TEST>cmdfaq
is_nt=true
A third option is the following. The most common. It assumes that
you have not tampered with the predefined system environment
variables for Windows XP. Their values can be changed by the user,
even if it is highly unrecommended.
@echo off
if [%OS%]==[Windows_NT] goto _xp
:: whatever MSDOS..95/98/ME-syntax commands
goto _end
:_xp
:: whatever NT/2000/XP-syntax commands
:_end
A more specific alternative testing for XP in particular is the
following
@echo off
set is_xp=false
ver|find "Microsoft Windows XP"
if %errorlevel% EQU 0 set is_xp=true
echo is_xp=%is_xp%
set is_xp=
The output on an XP could be e.g.
C:\_D\TEST>cmdfaq
Microsoft Windows XP [Version 5.1.2600]
is_xp=true
The solution has the added advantage that one can build a more
comprehensive identification on this alternative if one first maps
what the various Windows or MS-DOS versions will return for VER.
For a different, comprehensive identification of the particular
Windows_NT category, search
http://www.commandline.co.uk/lib/treeview/index.php
by Ritchie Lawrence for the GetOS function.
James Pang wrote:
I want to use below command to set the output string of find into
variable 'v' ver | find "Windows" | set /p v=
but it doesn't work!!! anybody has any idea?
My response: That is a problem that is a
superficially easy
@echo off & setlocal enableextensions
if [%OS%]==[Windows_NT] echo NT/2000/XP...
for /f "tokens=2 delims=[]" %%v in ('ver') do set ver_=%%v
echo %ver_%
endlocal & goto :EOF
Which would give e.g.
C:\_D\TEST>cmdfaq
NT/2000/XP...
Version 5.1.2600
However, that is somewhat of a circular deduction. We already have
advance knowledge what the OS is when using the above! Note that
'ver' output fields can differ between Windows versions. The more
fundamental question is how does one generally find out in a script
which OS? That problem has been tackled by Ritchie Lawrence in
GetOS.
Here
is my rendition, partly incomplete and (naturally) not tested
for all the OSes.
@echo off
set my_os=
::
echo Test|find "Fail">nul
if errorlevel 0 if not errorlevel 1 set my_os=Pre MS-DOS 6.0
if not "%my_os%"=="" goto _show
::
ver|find "6.22">nul
if errorlevel 0 if not errorlevel 1 set my_os=MS-DOS 6.22
::
ver|find "Windows 95.">nul
if errorlevel 0 if not errorlevel 1 set my_os=Windows95
::
if not "%OS%"=="Windows_NT" goto _show
::
net config workstation|find /i "Software version"|find "NT40">nul
if errorlevel 0 if not errorlevel 1 set my_os=Windows NT 4.0
::
net config workstation|find /i "Software version"|find "2000">nul
if errorlevel 0 if not errorlevel 1 set my_os=Windows 2000
::
net config workstation|find /i "Software version"|find "2002">nul
if errorlevel 0 if not errorlevel 1 set my_os=Windows XP
::
net config workstation|find /i "Software version"|find "2003">nul
if errorlevel 0 if not errorlevel 1 set my_os=Windows 2003
::
ver|find " 6.">nul
if errorlevel 0 if not errorlevel 1 set my_os=Vista
::
net config workstation|find /i "Software version"|find "Ultimate">nul
if errorlevel 0 if not errorlevel 1 set my_os=Windows 7
::
:_show
if "%my_os%"=="" set my_os=Unknown
echo %my_os%
for %%v in (my_os) do set %%v=
The output could be e.g.
C:\_D\TEST>cmdfaq
Windows XP
Another option:
@echo off & setlocal enableextensions
set xp_=
systeminfo|find "Microsoft Windows XP">nul
if %errorlevel% EQU 0 set xp_=true
if defined xp_ (
echo XP
) else (
echo Not XP)
endlocal & goto :EOF
C:\_D\TEST>cmdfaq
XP
Or
@echo off & setlocal enableextensions
for /f "tokens=2 delims=:" %%a in (
'systeminfo^|find /i "OS Name:"') do (
set osname_=%%a)
for /f "tokens=* delims= " %%a in (
'echo %osname_%') do set osname_=%%a
echo %osname_%
endlocal & goto :EOF
C:\_D\TEST>cmdfaq
Microsoft Windows XP Professional
@echo off & setlocal enableextensions
::
:: Get the Operating System
for /f "tokens=2,*" %%i in (
'reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion" /v ProductName^
^| find "REG_SZ"') do set prod_=%%j
echo.%prod_%|find "Microsoft Windows XP">nul
if %errorlevel% EQU 0 set xp_=true
if defined xp_ (
echo XP
) else (
echo Not XP)
endlocal & goto :EOF
C:\_D\TEST>cmdfaq
XP
A VBScript-aided solution:
@echo off & setlocal enableextensions
::
:: Build a Visual Basic Script and run it
set vbs_=%temp%\tmp$$$.vbs
set skip=
findstr "'%skip%VBS" "%~f0" > "%vbs_%"
for /f "tokens=*" %%a in ('cscript //nologo "%vbs_%"') do set osName_=%%a
::
:: Clean up
for %%f in ("%vbs_%") do if exist %%f del %%f
::
echo osName_=%osName_%
::
endlocal & goto :EOF
'
'The Visual Basic Script 'VBS
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2") 'VBS
Set colOSes = objWMIService.ExecQuery ("Select * from Win32_OperatingSystem") 'VBS
For Each objOS in colOSes 'VBS
Wscript.Echo objOS.Caption 'VBS
Next 'VBS
C:\_M>C:\_D\TEST\CMDFAQ.CMD
osName_=Microsoft Windows XP Professional
Incidentally, for a quick glance in the Windows GUI (Graphical User
Interface) you can use in the CLI (Command Line Interface)
Assorted NT/2000/XP/.. CMD.EXE Script Tricks
