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I know that the fork() can use for create a child process as following

pid_t child_pid;
int child_status;

child_pid = fork();

switch (child_pid)
{
case -1:
perror("fork");
...

If I want to write program that spread the work to its child process so that each process compute some task what should I do?


The objective of my program is to fill in the table which (10*10) in...

I have a problem to....

(1).List the number of unique users that has active
processes.

(2).List the number of active processes for each of
the users in (1).

(3).Determine total memory...