On 8/10/11 8:57 PM, Linda Walsh wrote:
> Chet Ramey wrote:
>
>>> ----
>>>
>>> Is this a fluke, due to the above changes NOT being 4.1? Or is
>>> this construction going to break in 4.2:
>>>
>>> '$((( )))'
>>
>> What does `break' mean? It's already written in a manner more
>> confusing and obscure than necessary. What value do you think the
>> extra set of parens adds?
> ----
>
> I thought the $( ) was necessary to make the inner (()) an arithmetic
> expression... Does it execute in a sub process?
When even the briefest reading of the manual page would have revealed:
"The format for arithmetic expansion is:
$((expression))"
and
"Command substitution allows the output of a command to replace the com-
mand name. There are two forms:
$(command)
or
`command`"
?
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU [email protected] http://cnswww.cns.cwru.edu/~chet/
