On 9/18/10 6:12 PM, Linda Walsh wrote:
>
>
>>
>>> IT isn't the == operator that turns t??t into something that can match
>>> 'test'
>>
>> It absolutely is. If you don't think so, you fundamentally misunderstand
>> its purpose and operation.
> ---
>
> Then where is the operator when you take the same chararcters
> t??t and place them as an argument to 'echo' or 'ls'
>
> echo t??t
> ls t??t
>
> The turn into something else there as well and there's no '==' to be
> found.
I really don't think you understand how this works, but I don't know
how to explain it a different way.
Pattern matching and regexp matching are essentially the same, and both
are active in contexts where they're defined to be active. Pattern
matching is a component of pathname expansion, and is active when and
where pathname expansion occurs. I think you're concentrating too hard
on whether or not there's an `operator' present.
--
``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/
