/*
 * Sample program for getpgrp system call - No.65
 *
 * Name
 *     getpgid, getpgrp - get process group
 *
 * Synopsis
 *     #include <unistd.h>
 *
 *     pid_t getpgid(pid_t pid)
 *     pid_t getpgrp(void);
 *
 * Description
 *     getpgid returns the process group ID of the precess speci-
 *     fied by pid. If pid is zero, the process ID of the cur-
 *     rent process is used.
 *
 *     getpgrp is equivalent to getpgid(0). Eeach process group
 *     is a member of a session and each process is a member of
 *     the session of whitch its process group is a member.
 *
 */

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

main()
{
	printf("the process group ID = %d\n", getpgrp());

	exit(0);
}