[PATCH] Ash support for replace and subsitution

[Denys Vlasenko]

On Monday 24 March 2008 18:14, Paul Smith wrote:
> On Mon, 2008-03-24 at 16:51 +0000, James Simmons wrote:
> > I have no problem with a NON_POSIX_EXTENSIONS. Is this true with the
> > other patches I posted?
> 
> Well, maybe we should wait for a ruling by Denys or someone.  I'd really
> love to have a POSIX-standard shell in busybox, and I had this idea that
> that was a design goal of ash.
> 
> But I could be wrong.  For example, the extended test notation [[ ... ]]
> is not POSIX, but (according to your patch; I haven't checked it myself)
> it's already supported.

Stupid question alert.

What is the difference between "test"/"[" and "[["?
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vda