// fork.c
// October 28, 2000
// Program to demonstrate the fork call

#include <sys/types.h>
#include <unistd.h>


int main()
{
  int i;
  char c;
  pid_t pid;


  // Create a child process
  if ((pid = fork()) < 0) {
    perror("fork");
    exit(1);
  }  // end if

  if (pid == 0) {
    // This is the code for the child process
    for (i=0; i < 10; i++) {
      for (c = 'a'; c <= 'z'; c++)
	write(1, &c, 1);
    }  // end for i
  }  // end if 

  else {
    // This is the code for the parent process
    for (i=0; i < 10; i++) {
      for (c = 'A'; c <= 'Z'; c++)
	write(1, &c, 1);
    }  // end for i
  }   // end else


  // This code is executed for parent and child processes
  write(1, "\n", 1);
  exit(0);
}  // end main