Do it in LINUX ONLY A Process creates a child process. Child process will print
ID: 3605378 • Letter: D
Question
Do it in LINUX ONLY
A Process creates a child process. Child process will print out "hello 0" "hello 1" ..... 1 line per second. After a certain number of seconds (user input), it kills itself WITH signal mechanism ONLY, don't use exit() on the child. You can use alarm() which may show the "Alarm clock". (Alarm clock may not appear depending on your environment. It is not required).
Output should look like
Thank You :)
hello 0 hello 1 hello 2 hello 3 hello 4 [... etc.] Alarm clock [may or may not appear ]Explanation / Answer
Desired command with comments are given below:
#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>
int main()
{
int pid;
int time = 1;
int timeDuration;
printf("Enter the time duration ");
scanf("%d", &timeDuration);
pid=fork(); //doing fork to get child
if(pid<0)
{
printf(" An error occured");
exit(1);
}
else if(pid==0) //in child
{
while(time <=timeDuration)
{
printf("hello %d",time);
sleep(1);
time++;
}
kill (getpid (), SIGUSR1);
}
}