Onlne Compiler C Linux
gcc filename.c -o./ hello
Vast Vole
gcc filename.c -o./ hello#include <stdio.h>
#include <unistd.h>
int main()
{
int id = fork();
if (id < 0)
printf("Fork failure\n");
else if (id == 0)
printf("Inside child: Pid of Parent Process: %d ::Pid of Child Process: %d\n\n", getppid(), getpid());
else
printf("Inside Parent: Pid of Parent Process: %d ::Pid of Child Process: %d\n\n", getpid(), id);
return 0;
}#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
int main(void){
int i;
uid_t id = geteuid();
struct utsname whoami;
i = uname(&whoami); /* hold the structure */
if ( i == 0 ){
printf("Operating system name : %s\n",whoami.whoami);
}