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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 11:24:24 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; de; rv: Gecko/20090915 Thunderbird/3.0b4

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 synonyms. Using 'local' outside a function is an error, so IMHO this command is completely redundant. It _would_ make some sense, however, if its counterpart 'global' existed, as it could help clarify the intended usage of the variable.


Bernd Eggink

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