Spaces in $()

Spaces in $()

[Nikolai Weibull]

Why doesn't

eval "$(echo 'v="s p a  c e s"')" && echo $v

and

eval $(echo 'v="s p a  c e s"') && echo $v

produce the same result?
	nikolai

--
::: name: Nikolai Weibull    :: aliases: pcp / lone-star / aka :::
::: born: Chicago, IL USA    :: loc atm: Gothenburg, Sweden    :::
::: page: www.pcppopper.org  :: fun atm: gf,lps,ruby,lisp,war3 :::
main(){printf(&linux["\021%six\012\0"],(linux)["have"]+"fun"-97);}

Re: Spaces in $()

[Nikolai Weibull]

* Nikolai Weibull <zsh-users-list@pcppopper.org> [Oct 24, 2004 23:29]:
> Why doesn't
>
> eval "$(echo 'v="s p a  c e s"')" && echo $v
>
> and
>
> eval $(echo 'v="s p a  c e s"') && echo $v
>
> produce the same result?

Because that's the way it's supposed to work.  $(...) without
surrounding double-quotes is split by IFS.

Man shell-quoting is a bitch,
	nikolai

--
::: name: Nikolai Weibull    :: aliases: pcp / lone-star / aka :::
::: born: Chicago, IL USA    :: loc atm: Gothenburg, Sweden    :::
::: page: www.pcppopper.org  :: fun atm: gf,lps,ruby,lisp,war3 :::
main(){printf(&linux["\021%six\012\0"],(linux)["have"]+"fun"-97);}

Re: Spaces in $()

[Nikolai Weibull]

* Nikolai Weibull <zsh-users-list@pcppopper.org> [Oct 24, 2004 23:37]:
> Because that's the way it's supposed to work.  $(...) without
> surrounding double-quotes is split by IFS.

Sorry for responding to my own posts twice in a row.  Anyway, is the
lesson to always write code like

var="$(...)"

instead of

var=$(...)

?  I mean, in what situations do you want $(...) to be split by IFS in
scripts?
	nikolai

--
::: name: Nikolai Weibull    :: aliases: pcp / lone-star / aka :::
::: born: Chicago, IL USA    :: loc atm: Gothenburg, Sweden    :::
::: page: www.pcppopper.org  :: fun atm: gf,lps,ruby,lisp,war3 :::
main(){printf(&linux["\021%six\012\0"],(linux)["have"]+"fun"-97);}

Re: Spaces in $()

[Bart Schaefer]

On Sun, 24 Oct 2004, Nikolai Weibull wrote:

> I mean, in what situations do you want $(...) to be split by IFS in
> scripts?

When you're assigning it to an array, rather than to a string variable.