Re: Want to replace bash w zsh as system shell on Ubuntu

[Frank Terbeck <ft@xxxxxxxxxxxxxxxxxxx>]

Joke de Buhr wrote:
> On Tuesday 02 February 2010 11:11:40 Richard Hartmann wrote:
[...]
> Sh compliant shell scripting can't use stuff like associative arrays, 
> subshell commands like "echo $(date -R)" or "[["-style tests. But some init 
> scripts do.

Not entirely true. Associative arrays can't be used, true. [[ ... ]]
cannot either. True.

But $(...) is perfectly correct syntax in POSIX shells. You may be
confused here, because older bourne shells don't support this. Shells
that adhere the standard, however, do.

[...]
>> I would just
>> 
>>   chsh
>> 
>> as root and be done with it.
>
> There's a difference between running "sudo -s" and changing the shell via 
> "chsh" and using "su". Sudo doesn't change the HOME environmental variable to 
> HOME=/root. It's set to "HOME=$HOME" so the root session uses the 
> configuration files of the user. That's why you don't have to copy your 
> ~/.vimrc configuration to /root/.vimrc.
>
> This behavior is very important if you're running a system with multiple 
> admins.

Yeah, it's also funny to suddenly end up with a number of your files
being owned by root (shouldn't happen with zsh's history file, since zsh
keeps track of the file's permissions even with the HIST_SAVE_BY_COPY
option enabled - which is the default; but not everything is as cautious
as zsh is).

Regards, Frank

-- 
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nothing left to add, but when there is nothing left to take away.
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