kmself@ix.netcom.com wrote:
>The key difference is that $( command list ) is nestable without
>quoting, backticks are not.

[snip]

>The functionality is common in a number of shells other than bash,
>though I'm not quite sure which.  I believe the Unix posix-compliant
>(bastardized korn) and possibly korn shells support it.

Looking through the shells I have installed, ash and zsh support it too.
As I remember, it only appeared in bash as of version 2.

-- 
Colin Watson                                     [EMAIL PROTECTED]

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