Re: Negative indexes in ${arr[@]:off:length}

[Chet Ramey]

> I don't even understand what the second one is supposed to mean at
> all -- the :1: means to start with "b" and the -2 means to go back 2
> elements...?  How do you derive "a c" from any possible interpretation
> of this?

I assume that he wants to be able to treat an indexed array as a circular
buffer without having to do any of the work in a script.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/