When did linux become caseless?

[alex@owal.co.uk]

> Subject says it all really. Just did "rm [A-Z]*" and had a load of files
>    with lower case first letters removed as well. Same thing happens for
> "ls -d [A-Z]*"
>
> I am guessing that this some bash argument expansion option. Any ideas
> as to how to get the correct behaviour?
>
> Using Ubuntu.

I dont beleive this is a property of Linux but a property of the
filesystem. You didnt say what filesystem.

But of course knowing Ubuntu it was probably made case-insensitive so as
to make it easy for people to use :-)

Alex