C > Gnu-Linux

Show,access enviroment var's

Show,access enviroment var's

#ifndef __USE_GNU
#define _GNU_SOURCE
#endif

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

int main(void) {
 char **env = environ;
 char pwd[256] = {0};

 printf("getenv() says, go home: %s\n",  getenv("HOME"));
 getcwd(pwd, sizeof(pwd));
 printf("getcwd says, no I am staying here: %s\n", pwd);

 printf("All other enviroment var's .... \n");
 for(; *env; env++) 
  printf("%s\n", *env);

 return 0;
}