[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: variable assignment in string returning function

From: Pierre Gaston
Subject: Re: variable assignment in string returning function
Date: Wed, 27 Jan 2010 15:07:40 +0200

On Wed, Jan 27, 2010 at 2:49 PM, Sharuzzaman Ahmat Raslan
<address@hidden> wrote:
> Hi,
> I found the behaviour of the function below is a little bit odd. Appreciate
> if someone can share his/her knowledge regarding the behaviour.
> The output of the script will be:
> address@hidden:~$ ./case1.sh
> Nice behaviour,
> Somehow, the backtick for foo() execute the function, echoing the correct
> output, but fails to set the variable $gang to the correct value. Because of
> that, the function bar() did not echoing anything because the variable $gang
> is null.

`` and $() introduce subshells. The parent shell cannot be modified by
the subshells.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]