Getting an environment variable from the main.

A sample to get an environment variable from optionnal main parameter.

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#include <stdio.h>
#include <stdlib.h>

int main(int argc,char** argv,char** env)
{
    int i;
    for(i=0;env[i]!=NULL;i++)
        printf("%s\n",env[i]);
    return 0;
}



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