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Re: add a way to declare global variables

From: Bernd Eggink
Subject: Re: add a way to declare global variables
Date: Sat, 12 Dec 2009 14:02:03 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; de; rv: Gecko/20090915 Thunderbird/3.0b4

Am 12.12.2009 11:24, schrieb Bernd Eggink:
Am 12.12.2009 02:11, schrieb Matthew Woehlke:
konsolebox wrote:
I hope the development team will also consider adding a way in bash to
declare global variables inside a function perhaps either with an
option in typeset or declare like -g (same as zsh) and/or a builtin
function like global as similar to local.

I thought variables in functions were /always/ global unless declared

It's the other way round. Regarding typeset and declare, the man page
says: " When used in a function, makes each name local, as with the
local command. " So within a function, typeset, declare, and local are

To avoid misunderstandings, let me add that you are right (only) with respect to variables being used _without_ declaration. The problem is that associative arrays are the only kind of variables that _must_ be declared, since something like "a[foo]=bar" without a preceding declaration would create an indexed array (and set a[0] to "bar").


Bernd Eggink

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