Re: [BASH] shell functions don't work the same when opening sub-shells

From: Chris F.A. Johnson (cfajohnson_at_gmail.com)
Date: 11/28/05 

Date: Mon, 28 Nov 2005 10:57:39 -0500

On 2005-11-28, Andrew Falanga wrote:
> Hi,
>
> I've got a rather odd occurrance when I open a sub-shell for changes to
> my environment.

   A subshell can only change its own environment, not that of the
   calling shell.

> In my .bashrc file I have some shell functions that
> I've written to help make life easier for me.
>
> One of these functions takes an option, -p, and then a pattern to search
> for. The pattern if found, is used in creating the sub-shell. I have
> it setup that the function always defaults to a specific type of pattern
> if the -p option is not provided.
>
> When starting a new shell all works as it should, but after exiting a
> sub-shell and using this function again, the function completely ignores
> the -p option and simply uses the default. Can anyone shed some light
> as to why for me?

   If it changes the function, it is not a subshell. Please post some
   code that exhibits the problem. 

-- 
   Chris F.A. Johnson, author   |    <http://cfaj.freeshell.org>
   Shell Scripting Recipes:     |  My code in this post, if any,
   A Problem-Solution Approach  |          is released under the
   2005, Apress                 |     GNU General Public Licence

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