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Re: command.com versus cmd.exe


From: Klaus Berndl
Subject: Re: command.com versus cmd.exe
Date: 12 Sep 2002 13:03:31 +0200
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1

On Thu, 12 Sep 2002, Kai Großjohann wrote:

>  I don't use Windows myself, but I think that some versions of Windows
>  use command.com as interpreter for commands and others use cmd.exe.
>  Is this true?
>  
>  If it is true, how would a Lisp package know which one to use?
>  shell-file-name?  system-type?

Do not know exactly but IMHO all modern Windows system use cmd.exe and only
old completely  DOS-based 16 bit windows systems like Windows 3.11 use
command.com...but i'm not sure....

Please correct me!

But it should not matter because i would recommend to check the
environment-variable COMSPEC (which is set always be every windows system!),
maybe like follows:

If you need the command interpreter of windows with full path do:

,----
| (expand-file-name (getenv "COMSPEC"))
`----

If you only want the name of the interpreter do:

,----
| (file-name-nondirectory (expand-file-name (getenv "COMSPEC")))
`----

Ciao,
Klaus
-- 
Klaus Berndl                    mailto: address@hidden
sd&m AG                         http://www.sdm.de
software design & management
Thomas-Dehler-Str. 27, 81737 München, Germany
Tel +49 89 63812-392, Fax -220

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