Re: What is wrong with a regex?

[Chet Ramey]

On 2/4/23 8:59 PM, Peng Yu wrote:

> > How did you get 2? Is this a new feature in bash? I get the above result in
> > bash 5.0.16(1)-release (ArchLinux) and 4.4.20(1)-release (AlmaLinux 8).
>
> $ bash --version
> GNU bash, version 5.1.8(1)-release (x86_64-apple-darwin20.3.0)

The bash version doesn't matter. The determining factor is the C library
extended regular expression support.

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