From: Nobuyoshi Nakada <nobu@...>
Date: 2009-01-29T16:46:59+09:00
Subject: [ruby-core:21661] Re: [Bug #907] Various system() and backticks problems on Windows

Hi,

At Thu, 29 Jan 2009 10:49:14 +0900,
James M. Lawrence wrote in [ruby-core:21650]:
> > > > Many of built-in shell commands of Unix also exist as an
> > > > independent file. e.g., /bin/echo, /bin/test, /bin/[ and so on,
> > > > but not on Windows.
> > > 
> > > So the reason is Unix emulation on mingw32/mswin32?
> > 
> > No, of course.  Such basic commands are built in the shell on
> > Windows, just I meant.
> 
> If you were not answering my question, then what is the answer?  Why
> does ruby support system("built-in-shell-command", "1") for this one
> case of Windows + cmd.exe?

Just followed the habits, e.g., nmake.exe also can run built-in
commands such as echo, dir and so on.

-- 
Nobu Nakada