Question

Can someone help me create this program for Linux.

Part 2. System Programming and Process Management You are asked to develop basic system programming including process creation and termination on a Linux platform in this part of programming project. You are asked to create multiple children processes to work under one parent process. In theory, children processes can do their own work separately or cooperatively to accomplish a task. In this assignment, these children processes simply print out a "hello" message together with their PIDs (process IDs) and exit. You should use fork0 and wait0 system calls to implement this program Requirements: 1 Take the number of children processes as an argument when the parent process creates children processes. This argument can be either hard coded in the program (e.g. a macro definition with #de fine) or can be passed through a command line argument 2. The parent process creates children processes and should print out an error message if s should also wait for all children processes to finish and creation fails. The parent proces then exit 3. Each child process should print out a hello message together its PID and then exit 4. Test with 2, 4, and 8 children processes. 5. Next, instead of creating multiple children processes of a parent process, you are asked to create a chain of processes. That is to say, the parent process will create one child and wait for it to finish, while the child creates its own child and wait for it as well, and so on The last child created should print out the message and exit immediately so that its ancestors can finish to0. Test your program with 2, 4, and 8 children processes again Hints: System calls getpid0 and getppid0 return a process ID and the parent process ID, respectively

Answer 1

As per HOMEWORKLIB RULES I am supposed to do first four subparts of a problem.You post the remaining questions seperately i will answer them.For various outputs we need to change the max value.

Hope you like my answer and hit that thumbs up.

#include<stdio.h>

#include<stdlib.h>
#include<sys/wait.h>
#include<unistd.h>
#define max 2
int main()
{
int loop=max;
int k=0;
while(k<loop)
{
if(fork() == 0)
{
printf("\n Hello\tchild process pid ppid: %d %d",getpid(),getppid());
exit(0);
}
  
k++;
}
for(k=0;k<max;k++)
wait(NULL);
  
return 0;
}