/*

*@author cody

*@date 2014-08-12

*@description

*/

/*

extern char **environ  //environment values

#include <stdlib.h>

char *getenv(const char *name);

int setenv(const char *name,const char *value,int rewrite); // set enviroment if exists rewrite - 0 do  not rewrite not 0 rewrite

void unsetenv(const char *name); //delete env by name

*/

#include <stdio.h>

#include <stdlib.h>

void environment(){

    extern char **environ;

    int i;

    for(i = ;environ[i] != NULL;i ++){

        printf("%s\n",environ[i] );

    }

}

void getPath(){

    char *path = getenv("PATH");

    printf("PATH = %s\n",path );

    setenv("PATH","HELLO",);

    path = getenv("PATH");

    printf("PATH = %s\n",path );

}

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

{

    //environment();

    getPath();

    return ;

}