Environment variable doubt

lrtaylor@micron.com lrtaylor@micron.com
Mon Sep 29 16:26:00 GMT 2003

You can also declare your programs main function as

int main(int argc, char** argv, char** env)

You will then get your environment variables as a zero-terminated array
of character pointers, pointing to variable-value pairs in the format


That will give you access to every environment variable defined in your
program's environment.

Lyle Taylor

-----Original Message-----
From: Ashay Shende [mailto:ashende@cisco.com] 
Sent: Monday, September 29, 2003 3:38 AM
To: Gcc-Help
Subject: RE: Environment variable doubt

Hi Bharati,
Could you give some more details about it.... like return type etc.

Anyways, i just tried : char* x = environ();

it gave me an error saying environ() cannot be used as a function.

-----Original Message-----
From: gcc-help-owner@gcc.gnu.org [mailto:gcc-help-owner@gcc.gnu.org]On
Behalf Of Bharathi S
Sent: Monday, September 29, 2003 11:05 AM
To: Ashay Shende
Cc: Gcc-Help
Subject: Re: Environment variable doubt

On Mon, 29 Sep 2003, Ashay Shende wrote:

> Also, can anyone tell me how to get the list of all the environment
> variables and their values.

environ() -- I never used it :)

HTH :)
Bharathi S, IndLinuX Team,   (__)
DON Lab,    TeNeT Group,     oo )
IIT-Madras, Chennai-INDIA.   (_/\ 

Known is DROP, Unknown is OCEAN.

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