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***Back_track*** · (This post was last modified: 05-27-2010 01:02 PM by Back_track.)

Code:

/**

*Access to Enviornment Variables - C - *nix

*Author: Back_Track

*May 26, 2010

**/

#include <stdio.h>

/**

*The enviornment variable is the 

*third variable (parameter) in the main

*function, it is a char array(String)

*/

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

    {

        int i=0; /*our temporary cariable for our while loop*/

        while(env[i])/*While there is still an enviornment variable DO*/

        {

            printf("Enviornment variable #%d is %s\n",i,env[i]);

            /*

            *You want to increment the temp. var after the enviornment variable

            *has been accessed and printed to the terminal.

            */

            i++;

        }

        return 0;

    }

Oh, did i tell you? I'm also learning C with Java Big Grin

***drdebcol*** · 05-28-2010, 03:34 AM

Yeah very good example. If you write main() function in that way, you can manipulate with certain data attached to program .

Xupicor · 01-06-2011, 03:02 PM

Note that it's not guaranteed to work, since this depends on implementation.