Program to get and set env

Operating Systems Lab Manual / Program to get and set env

Program Name:program to get and set env sys calls

Theory

get and set env sys calls are used to detail with environment variables.

Program Code

#include<stdio.h> 
#include<stdlib.h> 
int main()
{
const char *name="HOME"; 
printf("Oringinal Home value:  %s\n",getenv("HOME")); 
setenv("HOME","wisdommaterials",1);
printf("Changed  Home Value: %s ",getenv(name));
return 0;
}

Input:
HOME

Output:
wisdommaterials

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