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Displaying Source Code(s)
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Program to print its Process ID, Parent Process ID and Group ID
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/*
* Program to print its Process ID, Parent Process ID and Group
ID
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
int main()
{
pid_t pid, ppid;
gid_t gid;
/* get the process id */
if ((pid = getpid()) < 0) {
perror("
unable to get pid");
} else {
printf("
The process id is %d", pid);
}
/* get the parent process id */
if ((ppid = getppid()) < 0) {
perror("
unable to get the ppid");
} else {
printf("
The parent process id is %d", ppid);
}
/* get the group process id */
if ((gid = getgid()) < 0) {
perror("
unable to get the group id<BR>);
} else {
printf("
The group id is %d<BR>, gid);
}
return(0);
}
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