Re: chown and bash trashed part of system

[Philip Rowlands]

On Wed, 31 Dec 2008, Vincent Chapman wrote:

> I understand, but there are still incosistancies in the unix world of
> shells.  Try this and you'll understand how one(I) could make this
> mistake.
>
> $ sudo bash echo .*
> . .. .hidden_files
>
> in zsh
>
> $ sudo zsh echo .*
> .hidden_files

This output is presumably fake, but I see your point.

> zsh would not have accended into the parent directories.  Bash will.

zsh in a certain configuration will elide . and .. from the expansion of 
".*". bash will also, in a certain configuration, elide . and .. - 
please see the docs for "dotglob" and "GLOBIGNORE".

A shell behaving in accordance with POSIX will follow the spec as to the 
expansion of ".*" and "*".


Cheers,
Phil